01 n. One of the minute grains in flowerless plants, which are analogous to seeds, as serving to reproduce the species.
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1.
One of the minute grains in flowerless plants, which are analogous to seeds, as serving to reproduce the species.(Bot.)
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2.
An embryo sac or embryonal vesicle in the ovules of flowering plants.
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3.
A minute grain or germ; a small, round or ovoid body, formed in certain organisms, and by germination giving rise to a new organism; as, the reproductive spores of bacteria, etc.(Biol.)
Phrases & compounds
Spore formation —
A mode of reproduction resembling multiple fission, common among Protozoa, in which the organism breaks up into a number of pieces, or spores, each of which eventually develops into an organism like the parent form.