gym·no·sperm 
(j
ĭm
n
ə-spûrm
′)
n. A vascular plant, such as a cycad or conifer, whose seeds are not enclosed within an ovary.
[From New Latin Gymnospermae, former class name, from Greek gumnospermos : gumnos, naked; see nogw- in the Appendix of Indo-European roots + sperma, seed; see SPERM1.]
gym′no·spermous adj.
gymno·sper′my n.