The definition of exclamatory is a cry or remark that is sudden or strong and expresses an emotion.
A shout of "ouch!" when you burn yourself is an example of an exclamatory remark.
of, containing, expressing, or using exclamation
Origin of exclamatory; from Classical Latin exclamatus, past participle of exclamare (see exclaim) + -ory
Constituting, containing, relating to, or using exclamation.