gill

gill

¹

1. the respiratory organ in many aquatic animals, consisting of a membrane or outgrowth well supplied with blood vessels. External gills occur in tadpoles, some molluscs, etc.; internal gills, within gill slits, occur in most fishes

2. any of the radiating leaflike spore-producing structures on the undersurface of the cap of a mushroom

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gill

²

a unit of liquid measure equal to one quarter of a pint

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gill

¹, ghyll Dialect

1. a narrow stream; rivulet

2. a wooded ravine

3. a deep natural hole in rock; pothole

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gill

²

Dialect a female ferret

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Gill

(Arthur) Eric (Rowton). 1882--1940, British sculptor, engraver, and typographer: his sculptures include the Stations of the Cross in Westminster Cathedral, London

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

gill

[gil]

(mechanics)

A unit of volume used in the United States for the measurement of liquid substances, equal to ¼ U.S. liquid pint, or to 1.1829411825 × 10^-4 cubic meter.

A unit of volume used in the United Kingdom for the measurement of liquid substances, and occasionally of solid substances, equal to ¼ U.K. pint, or to approximately 1.420653125 × 10^-4 cubic meter.

(mycology)

A structure consisting of radially arranged rows of tissue that hang from the underside of the mushroom cap of certain basidiomycetes.

(vertebrate zoology)

The respiratory organ of water-breathing animals. Also known as branchia.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.