\Re*ver"sion\, n. [F. r['e]version, L. reversio a
turning back. See {Revert}.]
1. The act of returning, or coming back; return. [Obs.]
         After his reversion home, [he] was spoiled, also, of
         all that he brought with him.         --Foxe.
2. That which reverts or returns; residue. [Obs.]
         The small reversion of this great navy which came
         home might be looked upon by religious eyes as
         relics.                               --Fuller.
3. (Law) The returning of an esttate to the grantor or his
   heirs, by operation of law, after the grant has
   terminated; hence, the residue of an estate left in the
   proprietor or owner thereof, to take effect in possession,
   by operation of law, after the termination of a limited or
   less estate carved out of it and conveyed by him. --Kent.
4. Hence, a right to future possession or enjoiment;
   succession.
         For even reversions are all begged before. --Dryden.
5. (Annuities) A payment which is not to be received, or a
   benefit which does not begin, until the happening of some
   event, as the death of a living person. --Brande &C.
6. (Biol.) A return towards some ancestral type or character;
   atavism.
{Reversion of series} (Alg.), the act of reverting a series.
   See {To revert a series}, under {Revert}, v. t.