**Quad"rate** (?), a. [L. *quadratus* squared, p. p. of *quadrare* to make four-cornered, to make square, to square, to fit, suit, from *quadrus* square, *quattuor* four. See Quadrant, and cf. Quadrat, Quarry an arrow, Square.]

**1.**

Having four equal sides, the opposite sides parallel, and four right angles; square.

Figures, some round, some triangle, some **quadrate**.
*Foxe.*

**2.**

Produced by multiplying a number by itself; square.

"

*Quadrate* and cubical numbers."

*Sir T. Browne.*

**3.**

Square; even; balanced; equal; exact.

[Archaic] " A

*quadrate*, solid, wise man."

*Howell.*

**4.**

Squared; suited; correspondent.

[Archaic] " A generical description

*quadrate* to both."

*Harvey.*

Quadrate bone Anat., a bone between the base of the lower jaw and the skull in most vertebrates below the mammals. In reptiles and birds it articulates the lower jaw with the skull; in mammals it is represented by the malleus or incus.

© Webster 1913.

**Quad"rate** (?), n. [L. *quadratum*. See Quadrate, a.]

**1.** Geom.

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

At which command, the powers militant
That stood for heaven, in mighty **quadrate** joined.
*Milton.*

**2.** Astrol.

An aspect of the heavenly bodies in which they are distant from each other 90°, or the quarter of a circle; quartile. See the Note under Aspect, 6.

**3.** Anat.

The quadrate bone.

© Webster 1913.

**Quad"rate** (?), v. i. [imp. & p. p. Quadrated (?); p. pr. & vb. n. Quadrating.] [See Quadrate, a.]

To square; to agree; to suit; to correspond; -- followed by *with*.

[Archaic]

The objections of these speculatists of its forms do not **quadrate** with their theories.
*Burke.*

© Webster 1913.

**Quad"rate**, v. t.

To adjust (a gun) on its carriage; also, to train (a gun) for horizontal firing.

© Webster 1913.