heterochthonous

[ het-uh-rok-thuh-nuh s ]
/ ˌhɛt əˈrɒk θə nəs /

adjective

not indigenous; foreign (opposed to autochthonous): heterochthonous flora and fauna.

Origin of heterochthonous

1890–95; hetero- + Greek chthṓn the earth, land, country + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019