gymnosperm

Từ điển WordNet v3.1 - WordNet Dictionary

noun

plants of the class Gymnospermae having seeds not enclosed in an ovary
• Derivationally related forms:
gymnospermous
• Hypernyms:
spermatophyte, phanerogam, seed plant
• Hyponyms:
progymnosperm, welwitschia, Welwitschia mirabilis, cycad, seed fern, pteridosperm
• Member Holonyms:
Gymnospermae, class Gymnospermae, Gymnospermophyta, division Gymnospermophyta