| 释义 |
gym·no·sper·mae
\ˌ ̷ ̷ ̷ ̷ˈspər(ˌ)mē\ noun plural
Usage: capitalized
Etymology: New Latin, from gymn- + -spermae
: a class of Pteropsida or in some classifications a subdivision of Spermatophyta comprising seed plants (as cycads and conifers) that produce naked seeds not enclosed in an ovary and in some instances have motile spermatozoids and including the subclasses Cycadophytae and Coniferophytae — compare angiospermae, filicineae |