1. cyclostome - Noun
2. cyclostome - Adjective
Alt. of Cyclostomous
Source: Webster's dictionaryAn Upper Ordovician cobble with the edrioasteroid Cystaster stellatus and the thin branching cyclostome bryozoan Corynotrypa. Source: Internet
In the background is the cyclostome bryozoan Corynotrypa. Source: Internet