gymnosperm(n = noun.plant) - plants of the class Gymnospermae having seeds not enclosed in an ovary;
is a kind of phanerogam, seed plant, spermatophyte
is a member of class gymnospermae, division gymnospermophyta, gymnospermae, gymnospermophyta
has particulars: progymnosperm, welwitschia, welwitschia mirabilis, cycad, pteridosperm, seed fern
Derived form adjective gymnospermous₁

   A plant that bears naked seeds (i. e., seeds not inclosed in an ovary), as the common pine and hemlock. Cf. Angiosperm. [1913 Webster]

gymnosperm, n. any of various plants having seeds unprotected by an ovary, including conifers, cycads, and ginkgos (opp. ANGIOSPERM).

Derivative:
gymnospermous adj.

gymnosperm family, gymnosperm genus