Having four equal sides, the opposite sides parallel, and four right angles; square. / Produced by multiplying a number by itself; square. / (archaic) Square; even; balanced; equal; exact.

(geometry) A plane surface with four equal sides and four right angles; a square; hence, figuratively, anything having the outline of a square.

(archaic, transitive) To adjust (a gun) on its carriage. / (archaic, transitive) To train (a gun) for horizontal firing. / (archaic, transitive, intransitive) To square.

Quality of being quadrate.

Third-person singular simple present indicative form of quadrate

simple past tense and past participle of quadrate

square-shaped / (mathematics) of a polynomial, involving the second power (square) of a variable but no higher powers, as ax²+bx+c. / (mathematics) of an equation, of the form ax²+bx+c=0.

(mathematics) A quadratic polynomial, function or equation.

(letterpress typography, obsolete) A quad; a blank metal block used to fill space in lines of type.

(sciences) An area of land, marked for studying its plants, animals, soil, natural processes, etc.