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

Aphrodite :: Aphrodite (n.) A large marine annelid, covered with long, lustrous, golden, hairlike setae; the sea mouse..
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..
Sea Mouse :: Sea mouse () A dorsibranchiate annelid, belonging to Aphrodite and allied genera, having long, slender, hairlike setae on the sides..
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..
Setulose :: Setulose (a.) Having small bristles or setae.
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..
Pteridophyta :: Pteridophyta (n. pl.) A class of flowerless plants, embracing ferns, horsetails, club mosses, quillworts, and other like plants. See the Note under Cryptogamia..
Gymnocopa :: Gymnocopa (n. pl.) A group of transparent, free-swimming Annelida, having setae only in the cephalic appendages..
Equisetaceous :: Equisetaceous (a.) Belonging to the Equisetaceae, or Horsetail family..
Setaceous :: Setaceous (a.) Set with, or consisting of, bristles; bristly; as, a stiff, setaceous tail..
Setiparous :: Setiparous (a.) Producing setae; -- said of the organs from which the setae of annelids arise.
Trichophore :: Trichophore (n.) One of the saclike organs from which the setae of annelids arise.
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.
Setiger :: Setiger (n.) An annelid having setae; a chaetopod.
Foxtail :: Foxtail (n.) The name of several kinds of grass having a soft dense head of flowers, mostly the species of Alopecurus and Setaria..
Setaceous :: Setaceous (a.) Bristelike in form or texture; as, a setaceous feather; a setaceous leaf..
Peseta :: Peseta (n.) A Spanish silver coin, and money of account, equal to about nineteen cents, and divided into 100 centesimos..
Horsetail :: Horsetail (n.) A leafless plant, with hollow and rushlike stems. It is of the genus Equisetum, and is allied to the ferns. See Illust. of Equisetum..
Equisetum :: Equisetum (n.) A genus of vascular, cryptogamic, herbaceous plants; -- also called horsetails..
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..
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