Declaim \De*claim"\ (d[-e]*kl[=a]m"), v. i. [imp. & p. p. {Declaimed} (d[-e]*kl[=a]md"); p. pr. & vb. n. {Declaiming}.] [L. declamare; de- + clamare to cry out: cf. F. d['e]clamer. See {Claim}.] 1. To speak rhetorically; to make a formal speech or oration; to harangue; specifically, to recite a speech, poem, etc., in public as a rhetorical exercise; to practice public speaking; as, the students declaim twice a week.
2. To speak for rhetorical display; to speak pompously, noisily, or theatrically; to make an empty speech; to rehearse trite arguments in debate; to rant.
Grenville seized the opportunity to declaim on the repeal of the stamp act. --Bancroft.
Declaim \De*claim"\, v. t. 1. To utter in public; to deliver in a rhetorical or set manner.
2. To defend by declamation; to advocate loudly. [Obs.] ``Declaims his cause.'' --South.