gill slit
noun Date: 1854 1. any of the openings or clefts between the gill arches in vertebrates that breathe by gills through which water taken in at the mouth passes to the exterior and so bathes the gills 2. any of the rudimentary grooves in the neck region of the embryos of air-breathing vertebrates that correspond to the gill slits 3. the external opening to the cavity containing the gills when a protective covering of the gills is present

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Gill slit — Slit Slit, n. [AS. slite.] A long cut; a narrow opening; as, a slit in the ear. [1913 Webster] {Gill slit}. (Anat.) See {Gill opening}, under {Gill}. [1913 Webster] …   The Collaborative International Dictionary of English

  • Gill slit — Gill Gill (g[i^]l), n. [Dan. gi[ae]lle, gelle; akin to Sw. g[ a]l, Icel. gj[ o]lnar gills; cf. AS. geagl, geahl, jaw.] 1. (Anat.) An organ for aquatic respiration; a branchia. [1913 Webster] Fishes perform respiration under water by the gills.… …   The Collaborative International Dictionary of English

  • gill slit — n one of the openings or clefts between the gill arches in vertebrates that breathe by gills through which water taken in at the mouth passes to the exterior and bathes the gills also BRANCHIAL CLEFT * * * a long narrow opening from the pharynx… …   Medical dictionary

  • gill slit — [gil] n. any of a series of paired, slitlike openings between the pharynx and the area behind the mouth of fishes, some amphibians, etc …   English World dictionary

  • gill slit — noun one of a series of slit openings in the pharynxes of fishes and aquatic amphibians through which water passes • Syn: ↑branchial cleft, ↑gill cleft • Hypernyms: ↑structure, ↑anatomical structure, ↑complex body part, ↑bodily structure, ↑ …   Useful english dictionary

  • Gill slit — Gill slits are gills with individual openings rather than an outer cover. Cartilaginous fish such as sharks, rays, sawfish, and guitarfish all have gill slits. Most have five pairs, but a few species have 6 or 7 pairs. Bony fish have an outer… …   Wikipedia

  • gill slit — gill opening …   Dictionary of ichthyology

  • gill slit — /gil/. See branchial cleft. [1850 55] * * * …   Universalium

  • gill slit — noun An individual opening to gills, which lacks an operculum; characteristic of Cartilaginous fish such as sharks …   Wiktionary

  • gill cleft — gill slit …   Dictionary of ichthyology

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