Al`ien*a"tion (&?;), n. [F. aliénation, L. alienatio, fr. alienare, fr. alienare. See Alienate.] 1. The act of alienating, or the state of being alienated.

2. (Law) A transfer of title, or a legal conveyance of property to another.

3. A withdrawing or estrangement, as of the affections.

The alienation of his heart from the king.
Bacon.

4. Mental alienation; derangement of the mental faculties; insanity; as, alienation of mind.

Syn. -- Insanity; lunacy; madness; derangement; aberration; mania; delirium; frenzy; dementia; monomania. See Insanity.

• The act of being alienated against.