Definition of seta

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Seta (n.) One of the movable chitinous spines or hooks of an annelid. They usually arise in clusters from muscular capsules, and are used in locomotion and for defense. They are very diverse in form..

Lern More About Seta

Calamite :: Calamite (n.) A fossil plant of the coal formation, having the general form of plants of the modern Equiseta (the Horsetail or Scouring Rush family) but sometimes attaining the height of trees, and having the stem more or less woody within. See Acrogen, and Asterophyllite..
Equiseta :: Equiseta (pl. ) of Equisetu.
Setiform :: Setiform (a.) Having the form or structure of setae.
Chaetiferous :: Chaetiferous (a.) Bearing setae.
Seta :: Seta (n.) One of the movable chitinous spines or hooks of an annelid. They usually arise in clusters from muscular capsules, and are used in locomotion and for defense. They are very diverse in form..
Polychaeta :: Polychaeta (n. pl.) One of the two principal groups of Chaetopoda. It includes those that have prominent parapodia and fascicles of setae. See Illust. under Parapodia.
Chaetopoda :: Chaetopoda (n. pl.) A very extensive order of Annelida, characterized by the presence of lateral setae, or spines, on most or all of the segments. They are divided into two principal groups: Oligochaeta, including the earthworms and allied forms, and Polychaeta, including most of the marine species..
Millet :: Millet (n.) The name of several cereal and forage grasses which bear an abundance of small roundish grains. The common millets of Germany and Southern Europe are Panicum miliaceum, and Setaria Italica..
Aphrodite :: Aphrodite (n.) A large marine annelid, covered with long, lustrous, golden, hairlike setae; the sea mouse..
Setula :: Setula (n.) A small, short hair or bristle; a small seta..
Setulose :: Setulose (a.) Having small bristles or setae.
Aplacophora :: Aplacophora (n. pl.) A division of Amphineura in which the body is naked or covered with slender spines or setae, but is without shelly plates..
Gymnocopa :: Gymnocopa (n. pl.) A group of transparent, free-swimming Annelida, having setae only in the cephalic appendages..
Setigerous :: Setigerous (a.) Covered with bristles; having or bearing a seta or setae; setiferous; as, setigerous glands; a setigerous segment of an annelid; specifically (Bot.), tipped with a bristle..
Moha :: Moha (n.) A kind of millet (Setaria Italica); German millet.
Mousetail :: Mousetail (n.) A genus of ranunculaceous plants (Myosurus), in which the prolonged receptacle is covered with imbricating achenes, and so resembles the tail of a mouse..
Sea Mouse :: Sea mouse () A dorsibranchiate annelid, belonging to Aphrodite and allied genera, having long, slender, hairlike setae on the sides..
Isosporic :: Isosporic (a.) Producing but one kind of spore, as the ferns and Equiseta. Cf. Heterosporic..
Pteridophyta :: Pteridophyta (n. pl.) A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia..
Seta :: Seta (n.) Any slender, more or less rigid, bristlelike organ or part; as the hairs of a caterpillar, the slender spines of a crustacean, the hairlike processes of a protozoan, the bristles or stiff hairs on the leaves of some plants, or the pedicel of the capsule of a moss..
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