definition of
vocalization

[1] #1 vocalization n. [voice, vocalisation, vocalism, phonation, vox] the sound made by the vibration of vocal folds modified by the resonance of the vocal tract; "a singer takes good care of his voice"; "the giraffe cannot make any vocalizations". wn

[2] #2 vocalization n. [utterance] the use of uttered sounds for auditory communication. wn