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n. pl. bran·chi·ae (-kē-ē)
A gill or similar organ of respiration.
[Latin, from Greek brankhia, gills.]
n, pl -chiae (-kɪˌiː)
(Zoology) a gill in aquatic animals
1. the respiratory organ of aquatic animals, as fish, that breathe oxygen dissolved in water.
2. one of the radial plates that bear spores on the underside of the cap of certain mushrooms.
3. ground ivy.Idioms:
1. green or white around the gills, somewhat pale, as from nausea or fright.
2. to the gills, Informal. fully; completely; to capacity.
[1300–50; < Scandinavian; compare Old Norse gjǫlnar]
a unit of liquid measure equal to ¼ of a pint (118.2937 ml).
[1225–75; Middle English gille < Old French: vat, tub < Late Latin gello, gillo water pot]
2. a rivulet.
[1350–1400; < Old Norse gil]
a girl or young woman; sweetheart.
[1400–50; late Middle English, generic use of Gil(le), short form of a female given name, Gillian]
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|Noun||1.||branchia - respiratory organ of aquatic animals that breathe oxygen dissolved in water|
ctenidium - comb-like respiratory structure serving as the gill of certain mollusks
ceras - one of the often brightly colored and branching hornlike structures on the back of the nudibranch (and other related mollusks) that serve as gills
external gill - occurs in some mollusks and in tadpoles and other immature amphibians
respiratory organ - any organ involved in the process of respiration