gymnosperm

gym·no·sperm

noun \ˈjim-nə-ˌspərm\

Definition of GYMNOSPERM

: any of a class or subdivision (Gymnospermae) of woody vascular seed plants (as conifers or cycads) that produce naked seeds not enclosed in an ovary and that in some instances have motile spermatozoids—compare angiosperm

—gym·no·sper·mous \ˌjim-nə-ˈspər-məs\ adjective