Definition of Gill slit. Meaning of Gill slit. Synonyms of Gill slit

Here you will find one or more explanations in English for the word Gill slit. Also in the bottom left of the page several parts of wikipedia pages related to the word Gill slit and, of course, Gill slit synonyms and on the right images related to the word Gill slit.

Definition of Gill slit

Gill slit
Slit Slit, n. [AS. slite.] A long cut; a narrow opening; as, a slit in the ear. Gill slit. (Anat.) See Gill opening, under Gill.
Gill slit
Gill Gill, 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. Fishes perform respiration under water by the gills. --Ray. Note: Gills are usually lamellar or filamentous appendages, through which the blood circulates, and in which it is exposed to the action of the air contained in the water. In vertebrates they are appendages of the visceral arches on either side of the neck. In invertebrates they occupy various situations. 2. pl. (Bot.) The radiating, gill-shaped plates forming the under surface of a mushroom. 3. (Zo["o]l.) The fleshy flap that hangs below the beak of a fowl; a wattle. 4. The flesh under or about the chin. --Swift. 5. (Spinning) One of the combs of closely ranged steel pins which divide the ribbons of flax fiber or wool into fewer parallel filaments. [Prob. so called from F. aiguilles, needles. --Ure.] Gill arches, Gill bars. (Anat.) Same as Branchial arches. Gill clefts. (Anat.) Same as Branchial clefts. See under Branchial. Gill cover, Gill lid. See Operculum. Gill frame, or Gill head (Flax Manuf.), a spreader; a machine for subjecting flax to the action of gills. --Knight. Gill net, a flat net so suspended in the water that its meshes allow the heads of fish to pass, but catch in the gills when they seek to extricate themselves. Gill opening, or Gill slit (Anat.), an opening behind and below the head of most fishes, and some amphibians, by which the water from the gills is discharged. In most fishes there is a single opening on each side, but in the sharks and rays there are five, or more, on each side. Gill rakes, or Gill rakers (Anat.), horny filaments, or progresses, on the inside of the branchial arches of fishes, which help to prevent solid substances from being carried into gill cavities.

Meaning of Gill slit from wikipedia

- Gill slits are individual openings to gills, i.e., multiple gill arches, which lack a single outer cover. Such gills are characteristic of cartilaginous...
- vertebrates typically develop in the walls of the pharynx, along a series of gill slits opening to the exterior. Most species employ a counter-current exchange...
- pharyngeal slits. It is postulated that this is how pharyngeal slits first ****isted in filter-feeding, and later, with the addition of gills along their...
- delicate gills. A smaller opening, the spiracle, lies in the back of the first gill slit. This bears a small pseudobranch that resembles a gill in structure...
- slot-like body openings called gill slits that lead from the gills, but the Hexatrygonidae have six. Batoid gill slits lie under the pectoral fins on...
- to the environment, rather than set inside the pharynx and covered by gill slits, as they are in most fishes. Instead, the respiratory organs are set on...
- through a series of gill slits that perforate the body wall. Without the operculum bone, other methods of getting water to the gills are required, such...
- potentially damaging p****age of solid material through the gill slits and over the gill filaments, early gill rakers strained large particles from the water and...
- elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the...
- about twice the head length. In general, three external gills are inserted posterior to the gill slits and above the pectoral fins. It has cycloid scales embedded...