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gill

(gĭl)
n.
Zoology The respiratory organ of most aquatic animals that obtain oxygen from water, consisting of a filamentous structure of vascular membranes across which dissolved gases are exchanged.

gilled adj.

gill

  1. the respiratory organ of aquatic animals. External gills, as in tadpoles, are produced by the embryonic ECTODERM; internal gills, as in fish, are developed from the pharynx and are thus endodermal (see ENDODERM). Gills are usually well supplied with blood vessels, and interchange of oxygen and carbon dioxide takes place across the extensive surface area (see COUNTERCURRENT EXCHANGE). Gills also occur in many invertebrates, for example, in insects such as the caddis fly larva and molluscs such as oysters. Occasionally, unusual structures act as gills, for example, the walls of the rectum in certain dragonfly nymphs, water being pumped in and out via the anus.
  2. the spore-carrying lamellae in basidiomycete fungi, located underneath the cap or ‘pileus’.
References in periodicals archive ?
JiLL is the first product launched by JLL Labs, JLL's in-house, global network of software engineers and product experts developing innovative and commercially strategic proptech products.
PRIDE & PASSION Jill Farwell founded a children's hospice
New job Jill Carrino was congratulated by Bob Grant and chamber President Tom Johnston
From left: Jill's brother Nigel, her cousin Judith and Hamish Campbell, the senior investigating officer at the time of the murder
"Her early starts for BBC Breakfast meant she had to go to bed by 8pm - and if I had people over for supper it was difficult as Jill needed peace and quiet," says Judith.
Originally from Weston-super-Mare, Somerset, Jill was one of the best known faces on TV.
Los Angeles Police Department sources reportedly told TMZ that Jill's "frustration of being forced to provide Wendy long-term care, as well as the associated financial hardship," could have pushed her in that direction.
Jill Ireland is seeking several court orders, including a declaration that it is her constitutional right to have access to Christian publications in the exercise of her rights to practise religion and right to education, as provided for by the Federal Constitution's Article 11 on the freedom of religion.
Jill and Gavin met in 1992 at the Greenbelt Christian arts and music festival in Northamptonshire.
Trauma and orthopaedic staff nurse Jill said: "Women need to make sure and keep an eye on their own bodies as well as using the normal checks."
As well as showing solidarity with their friend, they are set to raise more than PS5,000 for Kirkwood Hospice, which is helping both Jill and Claire.
Jill is also an inspirational speaker who talks about how to overcome adversity from a woman who has.