Gymnosperm definition

jĭmnə-spûrm
(botany) Any plant such as a conifer whose seeds are not enclosed in an ovary.
noun
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A vascular plant, such as a cycad or conifer, whose seeds are not enclosed within an ovary.
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Any of a large division (Pinophyta) of seed plants having the ovules borne on open scales, usually in cones, and usually lacking true vessels in the woody tissue, including seed ferns, cycads, conifers, and the ginkgo.
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Any of a group of seed-bearing plants whose ovules are not enclosed in an ovary, but are exposed on the surface of sporophylls or similar structures. Each ovule may contain several eggs, all of which may be fertilized and start to develop in a process known as polyembryony. In most seeds, however, only a single embryo survives. The reproductive structures of many gymnosperms are arranged in cones. The gymnosperms do not form a distinct monophyletic grouping, but simply include all the seed-bearing plants that are not angiosperms. In addition to several extinct groups, there are four very diverse living gymnosperm phyla: the conifers, the cycads, the ginkgo (surviving in a single species), and the gnetophytes.
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Other Word Forms

Noun

Singular:
gymnosperm
Plural:
gymnosperms

Origin of gymnosperm

  • From New Latin Gymnospermae former class name from Greek gumnospermos gumnos naked nogw- in Indo-European roots sperma seed sperm1

    From American Heritage Dictionary of the English Language, 5th Edition

  • from Ancient Greek γυμνός (gumnos, “naked”) + σπέρμα (sperma, “seed”)

    From Wiktionary