Definition of: reversion

(ri·vûr′zhən, -shən) noun
1. A return to or toward some former state or condition.
2. The act of reversing or the state of being reversed.
3. A return, as to a former practice or belief.
4. Biol. a The recurrence or reappearance in an individual of characteristics which had not been evident for two or more generations; atavism. b An example of such recurrence.
5. Law a The return of an estate to the grantor or his heirs after the expiration of the grant. b The estate so returning. c The right of succession to an estate.
6. Obs. Remainder. [<OF <L reversio, -onis. See REVERT.]