ˈnēəˌmȯrf noun
Etymology: ne- + -morph
1. : a structure that is not derived from a similar structure in an ancestor
2. : a mutant gene having a function distinct from that of any nonmutant gene of the same locus
• neo·mor·phic |nēə|mȯrfik adjective
• neo·mor·phism ˈnēəˌmȯrˌfizəm, ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun -s