a. [ L. quadrupes, -pedis; quattuor four + pes, pedis, a foot: cf. F. quadrupède. See Quadrate, and Foot. ] Having four feet. [ 1913 Webster ]
n. (Zool.) An animal having four feet, as most mammals and reptiles; -- often restricted to the mammals. [ 1913 Webster ]
a. (Zool.) Having four feet; of or pertaining to a quadruped. [ 1913 Webster ]
n. [ L. quadru- in comp. + E. plane. ] An airplane with four superposed main supporting surfaces. Contrasted with
a. [ L. quadruplus, from quattuor four: cf. F. quadruple. See Quadrate, and cf. Double. ] Fourfold;
Quadruple time (Mus.),
n. [ Cf. F. quadruple, L. quadruplum. ] four times the sum or number; a fourfold amount;
v. t.
v. i. To be multiplied by four; to increase fourfold; to become four times as much. [ 1913 Webster ]
n. [ From Quadruple. ]
a. [ L., from quattuor four + plicare to fold. ] Fourfold; folded or doubled twice. [ 1913 Webster ]
Quadruplex system (Electric Telegraph),
v. t.
a. [ L. quadruplicatus, p. p. ] [ 1913 Webster ]
n. [ L. quadruplicatio: cf. F. quadruplication. ] The act of making fourfold; a taking four times the simple sum or amount. [ 1913 Webster ]
adv. To a fourfold quantity; so as to be, or cause to be, quadruple;
a. Containing one part of four; in the ratio of one to four;