Source : Webster's Revised Unabridged Dictionary (1913)

Acclimate \Ac*cli"mate\ (#; 277), v. t. [imp. & p. p.
   {Acclimated}; p. pr. & vb. n. {Acclimating}.] [F. acclimater;
   [`a] (l. ad) + climat climate. See {Climate}.]
   To habituate to a climate not native; to acclimatize. --J. H.
   Newman.