gonotheca [gon-uh-thee-kuh] Word Origin noun, plural gon·o·the·cae [gon-uh-thee-see] /ˌgɒn əˈθi si/. Zoology.
- the part of the perisarc covering a gonangium.
Origin of gonotheca First recorded in 1860–65; gono- + theca Related formsgon·o·the·cal, adjective