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.

(Spo"rid) n. (Bot.) A sporidium. Lindley.

(Spo`ri*dif"er*ous) a. [Sporidium + -ferous.] (Bot.) Bearing sporidia.

(||Spo*rid"i*um) n.; pl. Sporidia [NL. See Spore.] (Bot.) (a) A secondary spore, or a filament produced from a spore, in certain kinds of minute fungi. (b) A spore.

(Spo*rif"er*ous) a. [Spore + -ferous.] (Biol.) Bearing or producing spores.

(Spo`ri*fi*ca"tion) n. [Spore + L. -ficare (in comp.) to make. See -fy.] (Biol.) Spore formation. See Spore formation (b), under Spore.

(Spo"ro*carp) n. [Spore + Gr. fruit.] (Bot.) (a) A closed body or conceptacle containing one or more masses of spores or sporangia. (b) A sporangium.

(Spo"ro*cyst) n. [Gr. seed + bladder.]

1. (Zoöl.) An asexual zooid, usually forming one of a series of larval forms in the agamic reproduction of various trematodes and other parasitic worms. The sporocyst generally develops from an egg, but in its turn produces other larvæ by internal budding, or by the subdivision of a part or all of its contents into a number of minute germs. See Redia.

2. (Zoöl.) Any protozoan when it becomes encysted produces germs by sporulation.

(Spo`ro*gen"e*sis) n. [Spore + genesis.] (Biol.) reproduction by spores.

(Spo*rog"o*ny) n. [Spore + root of Gr. to be born.] (Zoöl.) The growth or development of an animal or a zooid from a nonsexual germ.

(Spo"ro*phore) n. [Spore + Gr. to bear.] (Bot.) (a) A placenta. (b) 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. Oöphore.

(Spo`ro*phor"ic) a. (Bot.) Having the nature of a sporophore.

(Spo"ro*sac) n. [Spore + sac.] (Zoöl.) (a) A hydrozoan reproductive zooid or gonophore which does not become medusoid in form or structure. See Illust. under Athecata. (b) An early or simple larval stage of trematode worms and some other invertebrates, which is capable or reproducing other germs by asexual generation; a nurse; a redia.

(||Spo`ro*zo"a) n. pl. [NL., from Gr. spo`ros a spore + zo^,on an animal.] (Zoöl.) An extensive division of parasitic Protozoa, which increase by sporulation. It includes the Gregarinida.

(Spo`ro*zo"id) n. [Spore + Gr. an animal.] (Bot.) Same as Zoöspore.

(Spor"ran) n. [Gael. sporan.] A large purse or pouch made of skin with the hair or fur on, worn in front of the kilt by Highlanders when in full dress.

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.

  By PanEris using Melati.

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