heterogonic

adjective

het·​ero·​gon·​ic ˌhet-ə-rə-ˈgän-ik 

1

: of, relating to, or marked by allometry

2

a

: being or characterized by a course of development in which a generation of parasites is succeeded by a free-living generation

a heterogonic life cycle of a nematode worm

compare homogonic

b

: relating to or being the free-living generation of a heterogonic life cycle