The Collaborative International Dictionary of English v.0.48:

Anemosis \An`e*mo"sis\, n. [NL., fr. Gr. ? wind.]
   A condition in the wood of some trees in which the rings are
   separated, as some suppose, by the action of high winds upon
   the trunk; wind shake.
   [Webster 1913 Suppl.] Anencephalic