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Parabola
A kind of curve; one of the conic sections formed by the intersection of the surface of a cone with a plane parallel to one of its sides. It is a curve, any point of which is equally distant fro..
Essence
The constituent quality or qualities which belong to any object, or class of objects, or on which they depend for being what they are (distinguished as real essence); the real being, divested of..
Object
Sight; show; appearance; aspect.
Faint
Lacking distinctness; hardly perceptible; striking the senses feebly; not bright, or loud, or sharp, or forcible; weak; as, a faint color, or sound.
Flower
The fairest, freshest, and choicest part of anything; as, the flower of an army, or of a family; the state or time of freshness and bloom; as, the flower of life, that is, youth.
Mist
Visible watery vapor suspended in the atmosphere, at or near the surface of the earth; fog.
Level
An instrument by which to find a horizontal line, or adjust something with reference to a horizontal line.
Zero
A cipher; nothing; naught.
Quiddity
The essence, nature, or distinctive peculiarity, of a thing; that which answers the question, Quid est? or, What is it?
Dwell
To delay; to linger.
Aim
To point or direct a missile weapon, or a weapon which propels as missile, towards an object or spot with the intent of hitting it; as, to aim at a fox, or at a target.
Retake
To take or receive again.
Focalize
To bring to a focus; to focus; to concentrate.
Seat
The place occupied by anything, or where any person or thing is situated, resides, or abides; a site; an abode, a station; a post; a situation.
Converge
To tend to one point; to incline and approach nearer together; as, lines converge.
Nub
A jag, or snag; a knob; a protuberance; also, the point or gist, as of a story.
Crossing
of Cross
Blur
To render obscure by making the form or outline of confused and uncertain, as by soiling; to smear; to make indistinct and confused; as, to blur manuscript by handling it while damp; to blur the..
Paleness
The quality or condition of being pale; want of freshness or ruddiness; a sickly whiteness; lack of color or luster; wanness.
Vagueness
The quality or state of being vague.
Haziness
The quality or state of being hazy.
Gravamen
The grievance complained of; the substantial cause of the action; also, in general, the ground or essence of a complaint. Bouvier.
Dimness
The state or quality / being dim; lack of brightness, clearness, or distinctness; dullness; obscurity.
Obscurity
The quality or state of being obscure; darkness; privacy; inconspicuousness; unintelligibleness; uncertainty.
Polestar
Polaris, or the north star. See North star, under North.
Lodestar
A star that leads; a guiding star; esp., the polestar; the cynosure.
Triangulation
The series or network of triangles into which the face of a country, or any portion of it, is divided in a trigonometrical survey; the operation of measuring the elements necessary to determi..
Scanning
of Scan
tracking
of Track
Cynosure
The constellation of the Lesser Bear, to which, as containing the polar star, the eyes of mariners and travelers were often directed.
Fuzzy
Not firmly woven; that ravels.
Inconspicuous
Not conspicuous or noticeable; hardly discernible.
Hazy
Thick with haze; somewhat obscured with haze; not clear or transparent.
Foggy
Filled or abounding with fog, or watery exhalations; misty; as, a foggy atmosphere; a foggy morning.
Soul
Sole.
Indefinite
Not definite; not limited, defined, or specified; not explicit; not determined or fixed upon; not precise; uncertain; vague; confused; obscure; as, an indefinite time, plan, etc.
Indistinguishable
Not distinguishable; not capable of being perceived, known, or discriminated as separate and distinct; hence, not capable of being perceived or known; as, in the distance the flagship was ind..
Hub
The central part, usually cylindrical, of a wheel; the nave. See Illust. of Axle box.
Nucleus
A kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made; the central or material portion; -- used both literally and figuratively.
Pronounced
of Pronounce
Question
The act of asking; interrogation; inquiry; as, to examine by question and answer.
Indistinct
Not distinct or distinguishable; not separate in such a manner as to be perceptible by itself; as, the indistinct parts of a substance.
Scrutinize
To examine closely; to inspect or observe with critical attention; to regard narrowly; as, to scrutinize the measures of administration; to scrutinize the conduct or motives of individuals.
Uncertainty
The quality or state of being uncertain.
Pooling
of Pool
Shed
A slight or temporary structure built to shade or shelter something; a structure usually open in front; an outbuilding; a hut; as, a wagon shed; a wood shed.
Meat
Food, in general; anything eaten for nourishment, either by man or beast. Hence, the edible part of anything; as, the meat of a lobster, a nut, or an egg.
Uncertain
Not certain; not having certain knowledge; not assured in mind; distrustful.
Gist
A resting place.
Bleary
Somewhat blear.
Postulate
Something demanded or asserted; especially, a position or supposition assumed without proof, or one which is considered as self-evident; a truth to which assent may be demanded or challenged, ..
Refer
To carry or send back.
Put
A pit.
Apply
To lay or place; to put or adjust (one thing to another); -- with to; as, to apply the hand to the breast; to apply medicaments to a diseased part of the body.
Motif
Motive.
Chapter
A division of a book or treatise; as, Genesis has fifty chapters.
Center
A point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference of a circle; the middle point or place.
Concentration
The act or process of concentrating; the process of becoming concentrated, or the state of being concentrated; concentration.
Lamp
A thin plate or lamina.
Dim
Not bright or distinct; wanting luminousness or clearness; obscure in luster or sound; dusky; darkish; obscure; indistinct; overcast; tarnished.
Confluence
The act of flowing together; the meeting or junction of two or more streams; the place of meeting.
Darkness
The absence of light; blackness; obscurity; gloom.
Funnel
A vessel of the shape of an inverted hollow cone, terminating below in a pipe, and used for conveying liquids into a close vessel; a tunnel.
staring
of Stare
Plain
To lament; to bewail; to complain.
Tube
A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe.
Slant
To be turned or inclined from a right line or level; to lie obliquely; to slope.
Problem
A question proposed for solution; a matter stated for examination or proof; hence, a matter difficult of solution or settlement; a doubtful case; a question involving doubt.
Thick
Measuring in the third dimension other than length and breadth, or in general dimension other than length; -- said of a solid body; as, a timber seven inches thick.
Confused
of Confuse
Motive
That which moves; a mover.
Film
A thin skin; a pellicle; a membranous covering, causing opacity; hence, any thin, slight covering.
Concurrence
The act of concurring; a meeting or coming together; union; conjunction; combination.
Congress
A meeting of individuals, whether friendly or hostile; an encounter.
Limit
That which terminates, circumscribes, restrains, or confines; the bound, border, or edge; the utmost extent; as, the limit of a walk, of a town, of a country; the limits of human knowledge or ..
Focus
A point in which the rays of light meet, after being reflected or refrcted, and at which the image is formed; as, the focus of a lens or mirror.
Concentrate
To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force; to fix; as, to concentrate rays of light into a focus; to concentrate the atten..
Asymptote
A line which approaches nearer to some curve than assignable distance, but, though infinitely extended, would never meet it. Asymptotes may be straight lines or curves. A rectilinear asymptote ..
Clear-cut
Having a sharp, distinct outline, like that of a cameo.
Quintessence
The fifth or last and highest essence or power in a natural body. See Ferment oils, under Ferment.
Unmistakable
Incapable of being mistaken or misunderstood; clear; plain; obvious; evident.
Filmy
Composed of film or films.
Faint
Lacking strength; weak; languid; inclined to swoon; as, faint with fatigue, hunger, or thirst.
Obscure
Covered over, shaded, or darkened; destitute of light; imperfectly illuminated; dusky; dim.
Nail
the horny scale of plate of epidermis at the end of the fingers and toes of man and many apes.
Blurred
of Blur
Soften
To make soft or more soft.
Conspicuous
Open to the view; obvious to the eye; easy to be seen; plainly visible; manifest; attracting the eye.
Magnet
The loadstone; a species of iron ore (the ferrosoferric or magnetic ore, Fe3O4) which has the property of attracting iron and some of its ores, and, when freely suspended, of pointing to the pol..
Stuff
Material which is to be worked up in any process of manufacture.
Misty
Accompained with mist; characterized by the presence of mist; obscured by, or overspread with, mist; as, misty weather; misty mountains; a misty atmosphere.
Defined
of Define
Tangent
A tangent line curve, or surface; specifically, that portion of the straight line tangent to a curve that is between the point of tangency and a given line, the given line being, for example, ..
Narrow
Of little breadth; not wide or broad; having little distance from side to side; as, a narrow board; a narrow street; a narrow hem.
Focal
Belonging to,or concerning, a focus; as, a focal point.
Patent
Open; expanded; evident; apparent; unconcealed; manifest; public; conspicuous.
Treat
To handle; to manage; to use; to bear one's self toward; as, to treat prisoners cruelly; to treat children kindly.
Hypostasis
That which forms the basis of anything; underlying principle; a concept or mental entity conceived or treated as an existing being or thing.
Shadowy
Full of shade or shadows; causing shade or shadow.
Quid
A portion suitable to be chewed; a cud; as, a quid of tobacco.
Study
A setting of the mind or thoughts upon a subject; hence, application of mind to books, arts, or science, or to any subject, for the purpose of acquiring knowledge.
Principle
Beginning; commencement.
Burden
That which is borne or carried; a load.
Vague
Wandering; vagrant; vagabond.
Elixir
A tincture with more than one base; a compound tincture or medicine, composed of various substances, held in solution by alcohol in some form.
Essential
Belonging to the essence, or that which makes an object, or class of objects, what it is.
Object
To set before or against; to bring into opposition; to oppose.
Spirit
Air set in motion by breathing; breath; hence, sometimes, life itself.
Essence
The constituent elementary notions which constitute a complex notion, and must be enumerated to define it; sometimes called the nominal essence.
Weakness
The quality or state of being weak; want of strength or firmness; lack of vigor; want of resolution or of moral strength; feebleness.
Distinct
Distinguished; having the difference marked; separated by a visible sign; marked out; specified.
Pale
Wanting in color; not ruddy; dusky white; pallid; wan; as, a pale face; a pale red; a pale blue.
Marrow
The tissue which fills the cavities of most bones; the medulla. In the larger cavities it is commonly very fatty, but in the smaller cavities it is much less fatty, and red or reddish in color.
Intensity
The state or quality of being intense; intenseness; extreme degree; as, intensity of heat, cold, mental application, passion, etc.
Stress
Distress.
Bring
To convey to the place where the speaker is or is to be; to bear from a more distant to a nearer place; to fetch.
Weak
Wanting physical strength.
Generator
One who, or that which, generates, begets, causes, or produces.
Heading
of Head
Fog
A second growth of grass; aftergrass.
Shot
of Shoot
Flower
In the popular sense, the bloom or blossom of a plant; the showy portion, usually of a different color, shape, and texture from the foliage.
Micrometer
An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of th..
Obvious
Opposing; fronting.
Cite
To call upon officially or authoritatively to appear, as before a court; to summon.
Concern
To relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to.
Lure
A contrivance somewhat resembling a bird, and often baited with raw meat; -- used by falconers in recalling hawks.
Heart
A hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
Pith
The soft spongy substance in the center of the stems of many plants and trees, especially those of the dicotyledonous or exogenous classes. It consists of cellular tissue.
Case
A box, sheath, or covering; as, a case for holding goods; a case for spectacles; the case of a watch; the case (capsule) of a cartridge; a case (cover) for a book.
Evident
Clear to the vision; especially, clear to the understanding, and satisfactory to the judgment; as, the figure or color of a body is evident to the senses; the guilt of an offender can not alw..
Fix
Fixed; solidified.
Prominent
Standing out, or projecting, beyond the line surface of something; jutting; protuberant; in high relief; as, a prominent figure on a vase.
Glaring
of Glare
Sense
A faculty, possessed by animals, of perceiving external objects by means of impressions made upon certain organs (sensory or sense organs) of the body, or of perceiving changes in the condition ..
Feeble
Deficient in physical strength; weak; infirm; debilitated.
Intensify
To render more intense; as, to intensify heat or cold; to intensify colors; to intensify a photographic negative; to intensify animosity.
Point
To appoint.
Rivet
A metallic pin with a head, used for uniting two plates or pieces of material together, by passing it through them and then beating or pressing down the point so that it shall spread out and for..
Direct
Straight; not crooked, oblique, or circuitous; leading by the short or shortest way to a point or end; as, a direct line; direct means.
Issue
The act of passing or flowing out; a moving out from any inclosed place; egress; as, the issue of water from a pipe, of blood from a wound, of air from a bellows, of people from a house.
Get
Jet, the mineral.
Seat
The place or thing upon which one sits; hence; anything made to be sat in or upon, as a chair, bench, stool, saddle, or the like.
Fundamental
Pertaining to the foundation or basis; serving for the foundation. Hence: Essential, as an element, principle, or law; important; original; elementary; as, a fundamental truth; a fundamental ..
Definition
The act of defining; determination of the limits; as, a telescope accurate in definition.
Rubric
That part of any work in the early manuscripts and typography which was colored red, to distinguish it from other portions.
Fasten
To fix firmly; to make fast; to secure, as by a knot, lock, bolt, etc.; as, to fasten a chain to the feet; to fasten a door or window.
Mention
A speaking or notice of anything, -- usually in a brief or cursory manner. Used especially in the phrase to make mention of.
Specify
To mention or name, as a particular thing; to designate in words so as to distinguish from other things; as, to specify the uses of a plant; to specify articles purchased.
Meet
To join, or come in contact with; esp., to come in contact with by approach from an opposite direction; to come upon or against, front to front, as distinguished from contact by following and ..
Kernel
The essential part of a seed; all that is within the seed walls; the edible substance contained in the shell of a nut; hence, anything included in a shell, husk, or integument; as, the kernel of..
Influence
A flowing in or upon; influx.
Affect
To act upon; to produce an effect or change upon.
Take
Taken.
Level
A line or surface to which, at every point, a vertical or plumb line is perpendicular; a line or surface which is everywhere parallel to the surface of still water; -- this is the true level, an..
Dark
Destitute, or partially destitute, of light; not receiving, reflecting, or radiating light; wholly or partially black, or of some deep shade of color; not light-colored; as, a dark room; a dark ..
Radius
A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.
Axiom
A self-evident and necessary truth, or a proposition whose truth is so evident as first sight that no reasoning or demonstration can make it plainer; a proposition which it is necessary to take ..
Core
A body of individuals; an assemblage.
Sap
The juice of plants of any kind, especially the ascending and descending juices or circulating fluid essential to nutrition.
Matter
That of which anything is composed; constituent substance; material; the material or substantial part of anything; the constituent elements of conception; that into which a notion may be analyze..
Subject
Placed or situated under; lying below, or in a lower situation.
Clear
Free from opaqueness; transparent; bright; light; luminous; unclouded.
Definite
Having certain or distinct; determinate in extent or greatness; limited; fixed; as, definite dimensions; a definite measure; a definite period or interval.
Meeting
of Meet
Concourse
A moving, flowing, or running together; confluence.
Theme
A subject or topic on which a person writes or speaks; a proposition for discussion or argument; a text.
Text
A discourse or composition on which a note or commentary is written; the original words of an author, in distinction from a paraphrase, annotation, or commentary.
Basis
The foundation of anything; that on which a thing rests.
Refine
To reduce to a fine, unmixed, or pure state; to free from impurities; to free from dross or alloy; to separate from extraneous matter; to purify; to defecate; as, to refine gold or silver; to..
Approach
To come or go near, in place or time; to draw nigh; to advance nearer.
Bend
To strain or move out of a straight line; to crook by straining; to make crooked; to curve; to make ready for use by drawing into a curve; as, to bend a bow; to bend the knee.
Head
The anterior or superior part of an animal, containing the brain, or chief ganglia of the nervous system, the mouth, and in the higher animals, the chief sensory organs; poll; cephalon.
Substance
That which underlies all outward manifestations; substratum; the permanent subject or cause of phenomena, whether material or spiritual; that in which properties inhere; that which is real, i..
Nub
To push; to nudge; also, to beckon.
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