Black's Law Dictionary (2nd edition)dictionaries

In Agtion

Attainable or recoverable by actlon; not in possesslon. A term ap-plied to property of which a party has not the possession, but only a rlght to recover it by action. Things in action are rights of personal things, whicb nevertheless are not in possession. See Chose in Action

Source: Black’s Law Dictionary 2nd Ed (1910)