• (a.) That has one form, or retains its primary form, as, a monoplastic element.
Mon`o·plas'tic adjective [ Mono- + -plastic .] (Biol.) That has one form, or retains its primary form, as, a monoplastic element. 
Type: Term Pronunciation: mon′ō-plas′tik Definitions: 1. Undergoing no change in structure; relating to a monoplast.