Pronunciation: -in- ' v ī -r ə n-m ə nt, - ' v ī (- ə )rn-
Function: noun
Date: 1931
: a small or relatively small usually distinctly specialized and effectively isolated habitat (as a forest canopy) or environment (as of a neuron)
– mi · cro · en · vi · ron · men · tal \ - ˌ v ī -r ə n- ' men-t ə l \ adjective