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Equimultiple
Equinal
Equine
equine antelope
equine distemper
equine encephalitis
equine encephalomyelitis
Equinecessary
equinely
Equinia
Equinoctial
equinoctial circle
Equinoctial colure
equinoctial point
Equinoctial points
equinoctial storm
Equinoctial time
equinoctial year
Equinoctially
Equinox
equinoxes, precession of the
Equinumerant
Equip
Equipage
Equipaged

equinoctial line definitions

WordNet (r) 3.0 (2005)

n
1: the great circle on the celestial sphere midway between the celestial poles [syn: celestial equator, equinoctial circle, equinoctial line, equinoctial]

Webster's 1913 Dictionary

Line Line, n. [OE. line, AS. l[=i]ne cable, hawser, prob. from L. linea a linen thread, string, line, fr. linum flax, thread, linen, cable; but the English word was influenced by F. ligne line, from the same L. word linea. See Linen.] 1. A linen thread or string; a slender, strong cord; also, a cord of any thickness; a rope; a hawser; as, a fishing line; a line for snaring birds; a clothesline; a towline. Who so layeth lines for to latch fowls. --Piers Plowman. 2. A more or less threadlike mark of pen, pencil, or graver; any long mark; as, a chalk line. 3. The course followed by anything in motion; hence, a road or route; as, the arrow descended in a curved line; the place is remote from lines of travel. 4. Direction; as, the line of sight or vision. 5. A row of letters, words, etc., written or printed; esp., a row of words extending across a page or column. 6. A short letter; a note; as, a line from a friend. 7. (Poet.) A verse, or the words which form a certain number of feet, according to the measure. In the preceding line Ulysses speaks of Nausicaa. --Broome. 8. Course of conduct, thought, occupation, or policy; method of argument; department of industry, trade, or intellectual activity. He is uncommonly powerful in his own line, but it is not the line of a first-rate man. --Coleridge. 9. (Math.) That which has length, but not breadth or thickness. 10. The exterior limit of a figure, plat, or territory; boundary; contour; outline. Eden stretched her line From Auran eastward to the royal towers Of great Seleucia. --Milton. 11. A threadlike crease marking the face or the hand; hence, characteristic mark. Though on his brow were graven lines austere. --Byron. He tipples palmistry, and dines On all her fortune-telling lines. --Cleveland. 12. Lineament; feature; figure. ``The lines of my boy's face.'' --Shak. 13. A straight row; a continued series or rank; as, a line of houses, or of soldiers; a line of barriers. Unite thy forces and attack their lines. --Dryden. 14. A series or succession of ancestors or descendants of a given person; a family or race; as, the ascending or descending line; the line of descent; the male line; a line of kings. Of his lineage am I, and his offspring By very line, as of the stock real. --Chaucer. 15. A connected series of public conveyances, and hence, an established arrangement for forwarding merchandise, etc.; as, a line of stages; an express line. 16. (Geog.) (a) A circle of latitude or of longitude, as represented on a map. (b) The equator; -- usually called the line, or equinoctial line; as, to cross the line. 17. A long tape, or a narrow ribbon of steel, etc., marked with subdivisions, as feet and inches, for measuring; a tapeline. 18. (Script.) (a) A measuring line or cord. He marketh it out with a line. --Is. xliv. 13. (b) That which was measured by a line, as a field or any piece of land set apart; hence, allotted place of abode. The lines are fallen unto me in pleasant places; yea, I have a goodly heritage. --Ps. xvi. 6. (c) Instruction; doctrine. Their line is gone out through all the earth. --Ps. xix. 4. 19. (Mach.) The proper relative position or adjustment of parts, not as to design or proportion, but with reference to smooth working; as, the engine is in line or out of line. 20. The track and roadbed of a railway; railroad. 21. (Mil.) (a) A row of men who are abreast of one another, whether side by side or some distance apart; -- opposed to column. (b) The regular infantry of an army, as distinguished from militia, guards, volunteer corps, cavalry, artillery, etc. 22. (Fort.) (a) A trench or rampart. (b) pl. Dispositions made to cover extended positions, and presenting a front in but one direction to an enemy. 23. pl. (Shipbuilding) Form of a vessel as shown by the outlines of vertical, horizontal, and oblique sections. 24. (Mus.) One of the straight horizontal and parallel prolonged strokes on and between which the notes are placed. 25. (Stock Exchange) A number of shares taken by a jobber. 26. (Trade) A series of various qualities and values of the same general class of articles; as, a full line of hosiery; a line of merinos, etc. --McElrath. 27. The wire connecting one telegraphic station with another, or the whole of a system of telegraph wires under one management and name. 28. pl. The reins with which a horse is guided by his driver. [U. S.] 29. A measure of length; one twelfth of an inch. Hard lines, hard lot. --C. Kingsley. [See Def. 18.] Line breeding (Stockbreeding), breeding by a certain family line of descent, especially in the selection of the dam or mother. Line conch (Zo["o]l.), a spiral marine shell (Fasciolaria distans), of Florida and the West Indies. It is marked by narrow, dark, revolving lines. Line engraving. (a) Engraving in which the effects are produced by lines of different width and closeness, cut with the burin upon copper or similar material; also, a plate so engraved. (b) A picture produced by printing from such an engraving. Line of battle. (a) (Mil. Tactics) The position of troops drawn up in their usual order without any determined maneuver. (b) (Naval) The line or arrangement formed by vessels of war in an engagement. Line of battle ship. See Ship of the line, below. Line of beauty (Fine Arts),an abstract line supposed to be beautiful in itself and absolutely; -- differently represented by different authors, often as a kind of elongated S (like the one drawn by Hogarth). Line of centers. (Mach.) (a) A line joining two centers, or fulcra, as of wheels or levers. (b) A line which determines a dead center. See Dead center, under Dead. Line of dip (Geol.), a line in the plane of a stratum, or part of a stratum, perpendicular to its intersection with a horizontal plane; the line of greatest inclination of a stratum to the horizon. Line of fire (Mil.), the direction of fire. Line of force (Physics), any line in a space in which forces are acting, so drawn that at every point of the line its tangent is the direction of the resultant of all the forces. It cuts at right angles every equipotential surface which it meets. Specifically (Magnetism), a line in proximity to a magnet so drawn that any point in it is tangential with the direction of a short compass needle held at that point. --Faraday. Line of life (Palmistry), a line on the inside of the hand, curving about the base of the thumb, supposed to indicate, by its form or position, the length of a person's life. Line of lines. See Gunter's line. Line of march. (Mil.) (a) Arrangement of troops for marching. (b) Course or direction taken by an army or body of troops in marching. Line of operations, that portion of a theater of war which an army passes over in attaining its object. --H. W. Halleck. Line of sight (Firearms), the line which passes through the front and rear sight, at any elevation, when they are sighted at an object. Line tub (Naut.), a tub in which the line carried by a whaleboat is coiled. Mason and Dixon's line

Webster's 1913 Dictionary

Equator E*qua"tor, n. [L. aequator one who equalizes: cf. F. ['e]quateur equator. See Equate.] 1. (Geog.) The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres. 2. (Astron.) The great circle of the celestial sphere, coincident with the plane of the earth's equator; -- so called because when the sun is in it, the days and nights are of equal length; hence called also the equinoctial, and on maps, globes, etc., the equinoctial line. Equator of the sun or of a planet (Astron.), the great circle whose plane passes through through the center of the body, and is perpendicular to its axis of revolution. Magnetic equator. See Aclinic.

Webster's 1913 Dictionary

Equinoctial E`qui*noc"tial, a. [L. aequinoctials, fr. aequinoctium equinox: cf. F. ['e]quinoxial. See Equinox.] 1. Pertaining to an equinox, or the equinoxes, or to the time of equal day and night; as, the equinoctial line. 2. Pertaining to the regions or climate of the equinoctial line or equator; in or near that line; as, equinoctial heat; an equinoctial sun. 3. Pertaining to the time when the sun enters the equinoctial points; as, an equinoctial gale or storm, that is, one happening at or near the time of the equinox, in any part of the world. Equinoctial colure (Astron.), the meridian passing through the equinoctial points. Equinoctial line (Astron.), the celestial equator; -- so called because when the sun is on it, the nights and days are of equal length in all parts of the world. See Equator. Thrice the equinoctial line He circled. --Milton. Equinoctial points (Astron.), the two points where the celestial and ecliptic intersect each other; the one being in the first point of Aries, the other in the first point of Libra. Equinoctial time (Astron.) reckoned in any year from the instant when the mean sun is at the mean vernal equinoctial point.



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