GILL

Gill

A gill is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment.

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gill

Noun

  1. A breathing organ of fish and other aquatic animals.
  2. A gill slit or gill cover.
    Gill nets are designed to catch a fish by the gills.
  3. One of the radial folds on the underside of the cap of a mushroom, on the surface of which the spore-producing organs are borne.
  4. The fleshy flap that hangs below the beak of a fowl; a wattle.
  5. The flesh under or about the chin; a wattle.
  6. One of the combs of closely ranged steel pins which divide the ribbons of flax fiber or wool into fewer parallel filaments.

Noun (etymology 2)

  1. A drink measure for spirits and wine. Size varies regionally but it is about one quarter of a pint.
  2. A measuring jug holding a quarter or half a pint.

Noun (etymology 3)

  1. rivulet
  2. ravine

Noun (etymology 4)

  1. A two-wheeled frame for transporting timber.

Noun (etymology 5)

  1. A leech.


The above text is a snippet from Wiktionary: gill
and as such is available under the Creative Commons Attribution/Share-Alike License.

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