Acclimatation n. : Acclimatization.

Example:


Taxonomy
Jardin d'Acclimatation, free encyclopedia, Jardin Zoologique, History, Jardin d'Acclimatation de Paris, menagerie, Paris, art museum, Visitor attractions in Paris, search, hectares, amusement park, naturalist, death, 1861, 1870-1871, the animals, finest restaurants.

Defination from the web:
... It was directed by Isidore Geoffroy Saint-Hilaire, son of the naturalist Étienne Geoffroy Saint-Hilaire, until his death in 1861. ...