1. (law) an interest in an estate that reverts to the grantor (or his heirs) at the end of some period (e.g., the death of the grantee)

Definition categories: possession, interest, stake

2. (genetics) a return to a normal phenotype (usually resulting from a second mutation)

Definition categories: event, mutation

3. a reappearance of an earlier characteristic

Similar word(s): atavism, throwback

Definition categories: event, recurrence, return

4. turning in the opposite direction

Similar word(s): reversal, reverse, turnabout, turnaround

Definition categories: act, reorientation

5. returning to a former state

Similar word(s): regress, regression, retrogression, retroversion

Definition categories: act, reversal

6. a failure to maintain a higher state

Similar word(s): backsliding, lapse, lapsing, relapse, relapsing, reverting

Definition categories: act, failure