Definition of hydra

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Hydra (n.) Any small fresh-water hydroid of the genus Hydra, usually found attached to sticks, stones, etc., by a basal sucker..

Lern More About Hydra

Water Cement :: Water cement () Hydraulic cement.
Ram :: Ram (n.) A hydraulic ram. See under Hydraulic.
Tropidine :: Tropidine (n.) An alkaloid, C8H13N, obtained by the chemical dehydration of tropine, as an oily liquid having a coninelike odor..
Hydrate :: Hydrate (v. t.) To form into a hydrate; to combine with water.
Menthene :: Menthene (n.) A colorless liquid hydrocarbon resembling oil of turpentine, obtained by dehydrating menthol. It has an agreeable odor and a cooling taste..
Hydractinian :: Hydractinian (n.) Any species or marine hydroids, of the genus Hydractinia and allied genera. These hydroids form, by their rootstalks, a firm, chitinous coating on shells and stones, and esp. on spiral shells occupied by hermit crabs. See Illust. of Athecata..
Hydrating :: Hydrating (p. pr. & vb. n.) of Hydrat.
Air Chamber :: Air chamber () A cavity containing air to act as a spring for equalizing the flow of a liquid in a pump or other hydraulic machine.
Hydrarthrosis :: Hydrarthrosis (n.) An effusion of watery liquid into the cavity of a joint.
Hydra-tainted :: Hydra-tainted (a.) Dipped in the gall of the fabulous hydra; poisonous; deadly.
Water Lime :: Water lime () Hydraulic lime.
Sucre :: Sucrate (n.) A compound of sucrose (or of some related carbohydrate) with some base, after the analogy of a salt; as, sodium sucrate..
Hydriform :: Hydriform (a.) Having the form or structure of a hydra.
Carbohydrate :: Carbohydrate (n.) One of a group of compounds including the sugars, starches, and gums, which contain six (or some multiple of six) carbon atoms, united with a variable number of hydrogen and oxygen atoms, but with the two latter always in proportion as to form water; as dextrose, C6H12O6..
Sterile :: Sterhydraulic (a.) Pertaining to, or designating, a kind of hydraulic press; resembling such a press in action or principle..
Myoepithelial :: Myoepithelial (a.) Having the characteristics of both muscle and epithelium; as, the myoepithelial cells of the hydra..
Centaur :: Centaur (n.) A constellation in the southern heavens between Hydra and the Southern Cross.
Saxifragaceous :: Saxifragaceous (a.) Of or pertaining to a natural order of plants (Saxifragaceae) of which saxifrage is the type. The order includes also the alum root, the hydrangeas, the mock orange, currants and gooseberries, and many other plants..
Gummite :: Gummite (n.) A yellow amorphous mineral, essentially a hydrated oxide of uranium derived from the alteration of uraninite..
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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