Definition of exclamation:
(n) :
a loud calling or crying out; outcry; loud or emphatic utterance; vehement vociferation; clamor; that which is cried out, as an expression of feeling; sudden expression of sound or words indicative of emotion, as in surprise, pain, grief, joy, anger, etc; a word expressing outcry; an interjection; a word expressing passion, as wonder, fear, or grief