n. The act or art of declaiming or making rhetorical harangues in public; especially, the delivery of a speech or an exercise in oratory or elocution, as by a student of a college, etc.: as, a public declamation; the art of declamation.n. Specifically In vocal music, the proper rhetorical enunciation of the words, especially in recitative and in dramatic music.n. A public harangue or set speech; an oration.n. Pompous, high-sounding verbiage in speech or writing; stilted oratory.n. A specially close or successful union of tones with words, as in a song or aria.n. A work in which the text is read or spoken while a musical accompaniment or comment is played. Also called melodrama. See melodrama, 2.