[ noun ] a loud utterance; often in protest or opposition <noun.communication> the speaker was interrupted by loud cries from the rear of the audience
Vociferation \Vo*cif`er*a"tion\, n. [L. vociferatio: cf. F. vocif['e]ration.] The act of vociferating; violent outcry; vehement utterance of the voice.
Violent gesture and vociferation naturally shake the hearts of the ignorant. --Spectator.
Plaintive strains succeeding the vociferations of emotion or of pain. --Byron.