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Spore
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English Dictionary: spore by the DICT Development Group
2 results for spore
From WordNet (r) 3.0 (2006) [wn]:
spore
n
  1. a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion; "a sexual spore is formed after the fusion of gametes"
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Spore \Spore\, n. [Gr. [?] a sowing, seed, from [?] to sow. Cf.
      {Sperm}.]
      1. (Bot.)
            (a) One of the minute grains in flowerless plants, which
                  are analogous to seeds, as serving to reproduce the
                  species.
  
      Note: Spores are produced differently in the different
               classes of cryptogamous plants, and as regards their
               nature are often so unlike that they have only their
               minuteness in common. The peculiar spores of diatoms
               (called auxospores) increase in size, and at length
               acquire a siliceous coating, thus becoming new diatoms
               of full size. Compare {Macrospore}, {Microspore},
               {O[94]spore}, {Restingspore}, {Sph[91]rospore},
               {Swarmspore}, {Tetraspore}, {Zo[94]spore}, and
               {Zygospore}.
            (b) An embryo sac or embryonal vesicle in the ovules of
                  flowering plants.
  
      2. (Biol.)
            (a) 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.
            (b) One of the parts formed by fission in certain
                  Protozoa. See {Spore formation}, belw.
  
      {Spore formation}.
            (a) (Biol) A mode of reproduction resembling multitude
                  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. --Balfour.
            (b) The formation of reproductive cells or spores, as in
                  the growth of bacilli.
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