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Hydrant :: Hydrant (n.) A discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks; a water plug.

Hydrotheca :: Hydrotheca (n.) One of the calicles which, in some Hydroidea (Thecaphora), protect the hydrants. See Illust. of Hydroidea, and Campanularian..

Hydranth :: Hydranth (n.) One of the nutritive zooids of a hydroid colony. Also applied to the proboscis or manubrium of a hydroid medusa. See Illust. of Hydroidea.

Isogonism :: Isogonism (n.) The quality of having similar sexual zooids or gonophores and dissimilar hydrants; -- said of certain hydroids.

Hose :: Hose (n.) A flexible pipe, made of leather, India rubber, or other material, and used for conveying fluids, especially water, from a faucet, hydrant, or fire engine..

Thecophora :: Thecophora (n. pl.) A division of hydroids comprising those which have the hydranths in thecae and the gonophores in capsules. The campanularians and sertularians are examples. Called also Thecata. See Illust. under Hydroidea.

Theca :: Theca (n.) The chitinous cup which protects the hydranths of certain hydroids.

Tubularia :: Tubularia (n.) A genus of hydroids having large, naked, flowerlike hydranths at the summits of long, slender, usually simple, stems. The gonophores are small, and form clusters at the bases of the outer tentacles..

Polypite :: Polypite (n.) One of the feeding zooids, or polyps, of a coral, hydroid, or siphonophore; a hydranth. See Illust. of Campanularian..

Standpipe :: Standpipe (n.) A vertical pipe, open at the top, between a hydrant and a reservoir, to equalize the flow of water; also, a large vertical pipe, near a pumping engine, into which water is forced up, so as to give it sufficient head to rise to the required level at a distance..

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