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gymnosperm

Line breaks: gymno|sperm
Pronunciation: /ˈdʒɪmnə(ʊ)spəːm
 
/

Definition of gymnosperm in English:

noun

Botany
A plant of a group that comprises those that have seeds unprotected by an ovary or fruit, including the conifers, cycads, and ginkgo. Compare with angiosperm.
Example sentences
  • Taxonomists can now say that the ferns' closest cousins are the seed plants - angiosperms (flowering plants) and gymnosperms (such as conifers).
  • The known flora consists of 41 ferns and fern allies, 3 gymnosperms, 291 monocots, and 516 dicots.
  • Moreover, since the expression pattern is similar in a gymnosperm and in an angiosperm this function appears to be evolutionarily conserved.

Derivatives

gymnospermous

1
Pronunciation: /-ˈspəːməs/
adjective
Example sentences
  • In contrast, the interval between c.916m and 885.9Om is totally dominated by gymnospermous saccate pollen, with very few fern spores.
  • So this is a time period where gymnospermous plants predominated, including cycadioids which look like modern cycads, and various groups of extinct conifers and seed ferns.
  • The late Triassic showed major radiation of plants, gymnospermous groups in particular, in both the Northern and Southern Hemispheres.

Definition of gymnosperm in:

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