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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.

-- Quaker ladies (Bot.), a low American biennial plant (Houstonia cærulea), with pretty four-lobed corollas which are pale blue with a yellowish center; -- also called bluets, and little innocents.

ables, and called quadric, cubic, quartic, etc., according as it is of the second, 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.

A four-sided cutting tool or chisel having a diamond-shaped end.

The fourth part; a quarter; hence, a region of the earth. [Obs.] Camber did possess the western quart. Spenser.

Of or pertaining to the fourth; occurring every fourth day, reckoning inclusively; as, a quartan ague, or fever.

Butane, each molecule of which has four carbon atoms.

etameric with crotonic acid, and obtained as a colorless liquid; -- so called from having four carbon atoms in the molecule. Called also isocrotonic acid.

One of four equal parts into which anything is divided, or is regarded as divided; a fourth part or portion; as, a quarter of a dollar, of a pound, of a yard, of an hour, etc. Hence, specifically:

Divided into four equal parts or quarters; separated into four parts or regions.

An ornamental foliation having four lobes, or foils.

The division of a shield containing different coats of arms into four or more compartments.

Containing, or consisting of, a fourth part; as, quarterly seasons.

A quarter. Specifically: (a) The fourth part of a pint; a gill.

A composition in four parts, each performed by a single voice or instrument.

Of the fourth degree.