(1):

(n.) Pretentious rhetorical display, with more sound than sense; as, mere declamation.

(2):

(n.) A set or harangue; declamatory discourse.

(3):

(n.) The act or art of declaiming; rhetorical delivery; haranguing; loud speaking in public; especially, the public recitation of speeches as an exercise in schools and colleges; as, the practice declamation by students.