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Pertaining to terms of the second degree; as, a quadratic equation, in which the highest power of the unknown quantity is a square.

That branch of algebra which treats of quadratic equations.

to and a white person; a person quarter-blooded. [Written also quarteron, quarteroon, and quateron.]

cond, third, fourth, fifth, or a higher degree. These are further called binary, ternary, quaternary, etc., according as they contain two, three, four, or more variables; thus, the quantic is a binary cubic.

ng or for collecting; to scrape; to search minutely. One is for raking in Chaucer for antiquated words. Dryden.

Of late origin, existence, or occurrence; lately come; not of remote date, antiquated style, or the like; not already known, familiar, worn out, trite, etc.; fresh; novel; new; modern; as, recent news. The ancients were of opinion, that a considerable portion of that country [Egypt] was recent, and formed out of the mu…

the substitution of reciprocals for given quantities. See the Phrases below. Reciprocal equation (Math.), one which remains unchanged in form when the reciprocal of the unknown quantity is substituted for that quantity. -- Reciprocal figures (Geom.), two figures of the same kind (as triangles, parallelograms, prisms,…

ent. When hydrogen is used the product is called also iron by hydrogen. -- To reduce an equation (Alg.), to bring the unknown quantity by itself on one side, and all the known quantities on the other side, without destroying the equation. -- To reduce an expression (Alg.), to obtain an equivalent expression of simple…

The act or process of reducing. See Reduce, v. t., 6. and To reduce an equation, To reduce an expression, under Reduce, v. t.

g or striking reed of the organ and clarinet. -- Meadow reed grass (Bot.), the Glyceria aquatica, a tall grass found in wet places. -- Reed babbler. See Reedbird. -- Reed bunting (Zoöl.) A European sparrow (Emberiza schoeniclus) which frequents marshy places; -- called also reed sparrow, ring bunting. (b) Reedling.…

One of a group of aquatic beetles having tarsi adapted for swimming. See Water beetle.

The act or process of solving; solution; as, the resolution of an equation or problem.

An equation upon whose solution the solution of a given pproblem depends.

is the more specific word in this sense. If the earth revolve thus, each house pear the equator must move a thousand miles an hour. I. Watts.

French rice. (Bot.) See Amelcorn. -- Indian rice., a tall reedlike water grass (Zizania aquatica), bearing panicles of a long, slender grain, much used for food by North American Indians. It is common in shallow water in the Northern States. Called also water oat, Canadian wild rice, etc. -- Mountain rice, any specie…

am. Nav. Encyc. -- Right sphere (Astron. & Geol.), a sphere in such a position that the equator cuts the horizon at right angles; in spherical projections, that position of the sphere in which the primitive plane coincides with the plane of the equator.

pecies of Old World parrakeets having a red ring around the neck, especially Palæornis torquatus, common in India, and P. Alexandri of Java. -- Ring plover. (Zoöl.) (a) The ringed dotterel. (b) Any one of several small American plovers having a dark ring around the neck, as the semipalmated plover (Ægialitis semipalma…

To squat; to ruck. [Obs.] Shak.

the roots of plants, as the Phylloxera of the grapevine. See Phylloxera. -- Root of an equation (Alg.), that value which, substituted for the unknown quantity in an equation, satisfies the equation. -- Root of a nail (Anat.), the part of a nail which is covered by the skin. -- Root of a tooth (Anat.), the part of a…

A portion of the southern equatorial current flowing westward from the Fiji Islands to New Guinea.