生物谷-->生物百科词典
1. <chemistry> Foreign; unnatural; unusual; said of forms of crystals not natural to the substances in which they are found.
2. <geology> Formed originating on the surface of the earth; opposed to hypogene; as, epigene rocks.
Origin: Pref. Epi- + Gr. To be born, grow.
Source: Websters Dictionary
