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Having four feet; of or pertaining to a quadruped.

An aëroplane with four superposed main supporting surfaces.

Fourfold; as, to make quadruple restitution; a quadruple alliance. Quadruple time (Mus.), that in which each measure is divided into four equal parts.

A collection or combination of four of a kind.

Fourfold; folded or doubled twice. Quadruplex system (Electric Telegraph), a system by which four messages, two in each direction, may be sent simultaneously over the wire.

To make fourfold; to double twice; to quadruple.

The act of making fourfold; a taking four times the simple sum or amount.

To a fourfold quantity; so as to be, or cause to be, quadruple; as, to be quadruply recompensed.

A squad of inapt recruits assembled for special drill.

th power, or the square of the square. Thus 4x4=16, the square of 4, and 16x16=256, the biquadrate of 4.

Of or pertaining to the biquadrate, or fourth power. Biquadratic equation (Alg.), an equation of the fourth degree, or an equation in some term of which the unknown quantity is raised to the fourth power. -- Biquadratic root of a number, the square root of the square root of that number. Thus the square root of 81 is…

To bring into a square. [R.] Ash.

A thin quadrant, made of brass, wood, etc., showing a stereographic projection on the plane of the equator. By it are found the hour of the day, the sun's azimuth, the altitude of objects in degrees, etc. See Gunter's scale.

Of, pertaining to, or representing the pterygoid and quadrate bones or cartilages.

An aspect of the planets when distant from each other the half of a quadrant, or forty-five degrees, or one sign and a half. Hutton.

A small party of men assembled for drill, inspection, or other purposes.

s drawn up in a square. [R.] Those half-rounding quards Just met, and, closing, stood in squadron joined. Milton.

Formed into squadrons, or squares. [R.] Milton.

Nearly or approximately square; almost square.

Containing one part of four; in the ratio of one to four; as, subquadruple proportion. Bp. Wilkins.