Propugnation, prō-pug-nā′shun, n. (Shak.) defence. [L., pro, for, pugnāre, to fight.]

Propulsion, prō-pul′shun, n. act of propelling: a driving forward.—adjs. Propul′sive, Propul′sory, tending or having power to propel. [Low L. propulsio—L. propellĕre, propulsum, to push forward.]

Propylæum, prō-pi-lē′um, n. a gateway of architectural importance, leading into a temple, &c.:—pl. Propylæ′a.—n. Prō′pylon, a monumental gateway before the entrance of an ancient Egyptian temple, &c. [Gr. pro, before, pylē, a gate.]

Pro rata, prō rā′ta, according to one's share: in proportion.—v.t. Prorāte′, to assess pro rata.

Prore, prōr, n. Same as Prow.

Prorector, prō-rek′tor, n. a substitute or assistant rector.

Pro re nata, prō rē nā′ta, dealing with something that arises unexpectedly or out of due course, for special business. [L. pro, for, re, abl. of res, thing, nata, abl. fem. of natus, born.]

Prorogue, prō-rōg′, v.t. to bring the meetings of parliament to an end for a time: to put off from one session to another:—pr.p. prorōg′uing: pa.t. and pa.p. prorōgued′.—v.t. Prō′rogāte.—n. Prorogā′tion, act of proroguing: a lengthening out: a putting off to another time, esp. the bringing to an end of a session of parliament. [Fr.,—L. prorogāre, -ātumpro, forward, rogāre, to ask.]

Prorsad, pror′sad, adv. (anat.) forward.—adj. Pror′sal, anterior.

Prosaic, -al, prō-zā′ik, -al, adj. pertaining to prose: like prose: commonplace in style, manner, or thought: dull.—adv. Prosā′ically.—ns. Prosā′icism, Prosā′icness, quality of being prosaic; Prō′saism, a prose idiom: a prosaic phrase; Prō′saist, a writer of prose: a commonplace person.