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gill
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- Gill - n. - An organ for aquatic respiration; a branchia.
- Gill - n. - The radiating, gill-shaped plates forming the under surface of a mushroom.
- Gill - n. - The fleshy flap that hangs below the beak of a fowl; a wattle.
- Gill - n. - The flesh under or about the chin.
- Gill - n. - One of the combs of closely ranged steel pins which divide the ribbons of flax fiber or wool into fewer parallel filaments.
- Gill - n. - A two-wheeled frame for transporting timber.
- Gill - n. - A leech.
- Gill - n. - A woody glen; a narrow valley containing a stream.
- Gill - n. - A measure of capacity, containing one fourth of a pint.
- Gill - n. - A young woman; a sweetheart; a flirting or wanton girl.
- Gill - n. - The ground ivy (Nepeta Glechoma); -- called also gill over the ground, and other like names.
- Gill - n. - Malt liquor medicated with ground ivy.
- Gill-flirt - n. - A thoughtless, giddy girl; a flirt-gill.
- Gillhouse - n. - A shop where gill is sold.
- Gillian - n. - A girl; esp., a wanton; a gill.
- Gillie Gilly - n. - A boy or young man; a manservant; a male attendant, in the Scottish Highlands.
- Gillyflower - n. - A name given by old writers to the clove pink (Dianthus Caryophyllus) but now to the common stock (Matthiola incana), a cruciferous plant with showy and fragrant blossoms, usually purplish, but often pink or white.
- Gillyflower - n. - A kind of apple, of a roundish conical shape, purplish red color, and having a large core.
- Scaphognathite - n. - A thin leafike appendage (the exopodite) of the second maxilla of decapod crustaceans. It serves as a pumping organ to draw the water through the gill cavity.
- Suprabranchial - a. - Situated above the branchiae; -- applied especially to the upper division of the gill cavity of bivalve mollusks.
- Fierasfer - n. - A genus of small, slender fishes, remarkable for their habit of living as commensals in other animals. One species inhabits the gill cavity of the pearl oyster near Panama; another lives within an East Indian holothurian.
- Amphiuma - n. - A genus of amphibians, inhabiting the Southern United States, having a serpentlike form, but with four minute limbs and two persistent gill openings; the Congo snake.
- Stigma - v. t. - One of the apertures of the gill of an ascidian, and of Amphioxus.
- Ghyll - n. - A ravine. See Gill a woody glen.
- Gillhouse - n. - A shop where gill is sold.
- Hag - n. - An eel-like marine marsipobranch (Myxine glutinosa), allied to the lamprey. It has a suctorial mouth, with labial appendages, and a single pair of gill openings. It is the type of the order Hyperotpeta. Called also hagfish, borer, slime eel, sucker, and sleepmarken.
- Operculum - n. - The principal opercular bone in the upper and posterior part of the gill cover.
- Analogue - n. - An organ which is equivalent in its functions to a different organ in another species or group, or even in the same group; as, the gill of a fish is the analogue of a lung in a quadruped, although the two are not of like structural relations.
- Trichobranchia - n. - The gill of a crustacean in which the branchial filaments are slender and cylindrical, as in the crawfishes.
- Operculum - n. - The fold of integument, usually supported by bony plates, which protects the gills of most fishes and some amphibians; the gill cover; the gill lid.
- Gill - n. - The ground ivy (Nepeta Glechoma); -- called also gill over the ground, and other like names.
- Siphonobranchiata - n. pl. - A tribe of gastropods having the mantle border, on one or both sides, prolonged in the form of a spout through which water enters the gill cavity. The shell itself is not always siphonostomatous in this group.
- Raker - n. - See Gill rakers, under 1st Gill.
- Symbranchii - n. pl. - An order of slender eel-like fishes having the gill openings confluent beneath the neck. The pectoral arch is generally attached to the skull, and the entire margin of the upper jaw is formed by the premaxillary. Called also Symbranchia.
- Siphon - n. - One of the tubes or folds of the mantle border of a bivalve or gastropod mollusk by which water is conducted into the gill cavity. See Illust. under Mya, and Lamellibranchiata.
- Siphon - n. - The tubular organ through which water is ejected from the gill cavity of a cephaloid. It serves as a locomotive organ, by guiding and confining the jet of water. Called also siphuncle. See Illust. under Loligo, and Dibranchiata.
- Pectinibranchiata - n. pl. - A division of Gastropoda, including those that have a comblike gill upon the neck.
- Derotremata - n. pl. - The tribe of aquatic Amphibia which includes Amphiuma, Menopoma, etc. They have permanent gill openings, but no external gills; -- called also Cryptobranchiata.
- Spiracle - n. - A tubular orifice communicating with the gill cavity of certain ganoid and all elasmobranch fishes. It is the modified first gill cleft.
- Ascidioidea - n. pl. - A group of Tunicata, often shaped like a two-necked bottle. The group includes, social, and compound species. The gill is a netlike structure within the oral aperture. The integument is usually leathery in texture. See Illustration in Appendix.
- Marsipobranchia - n. pl. - A class of Vertebrata, lower than fishes, characterized by their purselike gill cavities, cartilaginous skeletons, absence of limbs, and a suckerlike mouth destitute of jaws. It includes the lampreys and hagfishes. See Cyclostoma, and Lamprey. Called also Marsipobranchiata, and Marsipobranchii.
- Pneumoskeleton - n. - A chitinous structure which supports the gill in some invertebrates.
- Phyllobranchia - n. - A crustacean gill composed of lamellae.