Definition of spore

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Spore (n.) 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..

Lern More About Spore

Spermospore :: Spermospore (n.) The male germinal or seminal cell, from the breaking up of which the spermoblasts are formed and ultimately the spermatozoids; a spermatospore..
Spore :: Sporangium (n.) A spore case in the cryptogamous plants, as in ferns, etc..
Prothallus :: Prothallus (n.) The minute primary growth from the spore of ferns and other Pteridophyta, which bears the true sexual organs; the oophoric generation of ferns, etc..
Phaeospore :: Phaeospore (n.) A brownish zoospore, characteristic of an order (Phaeosporeae) of dark green or olive-colored algae..
Cryptogamia :: Cryptogamia (n.) The series or division of flowerless plants, or those never having true stamens and pistils, but propagated by spores of various kinds..
Macrozoospore :: Macrozoospore (n.) A large motile spore having four vibratile cilia; -- found in certain green algae.
Brand Spore :: Brand spore () One of several spores growing in a series or chain, and produced by one of the fungi called brand..
Sporophoric :: Sporophore (n.) That alternately produced form of certain cryptogamous plants, as ferns, mosses, and the like, which is nonsexual, but produces spores in countless numbers. In ferns it is the leafy plant, in mosses the capsule. Cf. Oophore..
Carpospore :: Carpospore (n.) A kind of spore formed in the conceptacles of red algae.
Heterosporous :: Heterosporous (a.) Producing two kinds of spores unlike each other.
Pycnidium :: Pycnidium (n.) In certain fungi, a flask-shaped cavity from the surface of the inner walls of which spores are produced..
Oosporangium :: Oosporangium (n.) An oogonium; also, a case containing oval or rounded spores of some other kind than oospores..
Earthstar :: Earthstar (n.) A curious fungus of the genus Geaster, in which the outer coating splits into the shape of a star, and the inner one forms a ball containing the dustlike spores..
Oospore :: Oospore (n.) A fertilized oosphere in the ovule of a flowering plant.
Ring :: Ring (n.) An elastic band partly or wholly encircling the spore cases of ferns. See Illust. of Sporangium.
Lid :: Lid (n.) The cover of the spore cases of mosses.
Spore :: Spore (n.) An embryo sac or embryonal vesicle in the ovules of flowering plants.
Macrosporangium :: Macrosporangium (n.) A sporangium or conceptacle containing only large spores; -- opposed to microsporangium. Both are found in the genera Selaginella, Isoctes, and Marsilia, plants remotely allied to ferns..
Anthrax :: Anthrax (n.) An infectious disease of cattle and sheep. It is ascribed to the presence of a rod-shaped bacterium (Bacillus anthracis), the spores of which constitute the contagious matter. It may be transmitted to man by inoculation. The spleen becomes greatly enlarged and filled with bacteria. Called also splenic fever..
Thecasporous :: Thecasporous (a.) Having the spores in thecae, or cases..
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