Revert \Re*vert"\, v. i.

1. To return; to come back.

So that my arrows Would have reverted to my bow again. --Shak.

2. (Law) To return to the proprietor after the termination of a particular estate granted by him.

3. (Biol.) To return, wholly or in part, towards some pre["e]xistent form; to take on the traits or characters of an ancestral type.

4. (Chem.) To change back, as from a soluble to an insoluble state or the reverse; thus, phosphoric acid in certain fertilizers reverts.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Revert \Re*vert"\, n. One who, or that which, reverts.

An active promoter in making the East Saxons converts, or rather reverts, to the faith. --Fuller.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Revert \Re*vert"\, v. t. [imp. & p. p. Reverted; p. pr. & vb. n. Reverting.]

[L. revertere, reversum; pref. re- re- + vertere to turn: cf. OF. revertir. See Verse, and cf. Reverse.]

1. To turn back, or to the contrary; to reverse.

Till happy chance revert the cruel scence. --Prior.

The tumbling stream . . . Reverted, plays in undulating flow. --Thomson.

2. To throw back; to reflect; to reverberate.

3. (Chem.) To change back. See Revert, v. i.

To revert a series (Alg.), to treat a series, as y = a + bx + cx^2 + etc., where one variable y is expressed in powers of a second variable x, so as to find therefrom the second variable x, expressed in a series arranged in powers of y.

Source: Webster's Revised Unabridged Dictionary (1913)