The Collaborative International Dictionary
Acclimature
Acclimature \Ac*cli"ma*ture\ ([a^]k`kl[imac]"m[.a]*t[-u]r; 135),
n.
The act of acclimating, or the state of being acclimated.
[R.]
--Caldwell.
Wiktionary
acclimature
n. (context rare English) The act of acclimating, or the state of being acclimated.