1.Zoology The respiratory organ of most aquatic animals that breathe water to obtain oxygen, consisting of a filamentous structure of vascular membranes across which dissolved gases are exchanged. 2a. The wattle of a bird. Often used in the plural. b.gillsInformal The area around the chin and neck. 3.Botany One of the thin, platelike structures on the underside of the cap of a mushroom or similar fungus.
VERB:
Inflected forms: gilled, gill·ing, gills
TRANSITIVE VERB:
1. To catch (fish) in a gill net. 2. To gut or clean (fish).
INTRANSITIVE VERB:
To become entangled in a gill net. Used of fish.
IDIOM:
to the gillsInformal As full as possible; completely.
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