expiration
noun
[ ˌɛkspɪˈreɪʃ(ə)n ]
• the ending of the fixed period for which a contract is valid.
• "the expiration of the lease"
• the exhalation of breath from the lungs.
• "at the end of expiration there is still a slight inflation in the lungs"
Origin:
late Middle English (denoting a vapour or exhalation): from Latin exspiratio(n- ), from the verb exspirare (see expire).
