Seta Se"ta (s[=e]"t[.a]), n.; pl. {Set[ae]} (s[=e]"t[=e]). [L. seta, saeta, a bristle.] 1. (Biol.) 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. [1913 Webster]

2. (Zo["o]l.) (a) 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. (b) One of the spinelike feathers at the base of the bill of certain birds. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

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  • setae — n. bristle, stiff hair (Biology) …   English contemporary dictionary

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  • Synthetic setae — emulate the setae found on the toes of a gecko and scientific research in this area is driven towards the development of dry adhesives. Geckos have no difficulty mastering vertical walls and are apparently capable of adhering themselves to just… …   Wikipedia

  • somatic setae — 1. Any setae on the body. 2. (ANNELIDA) Setae of the somatic segments that function in locomotion …   Dictionary of invertebrate zoology

  • cleaning setae — Unusual setulate setae used to clean the antennae or antennulae. These setae are located on the distal segment of the mandibular palp [Wilson, 1989] …   Crustacea glossary

  • adfrontal setae — (ARTHROPODA: Insecta) Setae borne on the adfrontal areas of immature insects, usually numbered according to their proximity to the vertex …   Dictionary of invertebrate zoology

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