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[hahy-droid] /ˈhaɪ drɔɪd/

noting or pertaining to that form of hydrozoan that is asexual and grows into branching colonies by budding.
the phase of a hydrozoan coelenterate that consists of polyp forms usually growing as an attached colony.
of or relating to the Hydroida, an order of colonial hydrozoan coelenterates that have the polyp phase dominant
(of coelenterate colonies or individuals) having or consisting of hydra-like polyps
a hydroid colony or individual
Any of numerous, usually colonial marine coelenterates of the order Hydroida, having a polyp rather than a medusoid form as the dominant stage of the life cycle. Hydroids have a simple cylindrical body with a mouthlike opening surrounded by tentacles. Most species form colonies with individual hydroids branching off from a common hollow tube that is probably used to share ingested food. The young develop from eggs or from buds. The most well-known hydroids are the hydras (genus Hydra), which are atypical in being both freshwater and solitary.


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    [hahy-droh-ki-net-ik, -kahy-] /ˌhaɪ droʊ kɪˈnɛt ɪk, -kaɪ-/ adjective 1. pertaining to the motion of liquids. 2. of or relating to . /ˌhaɪdrəʊkɪˈnɛtɪk; -kaɪ-/ adjective 1. of or concerned with fluids that are in motion 2. of or concerned with hydrokinetics hydrokinetic hy·dro·ki·net·ic (hī’drō-kə-nět’ĭk, -kī-) or hy·dro·ki·net·i·cal (-ĭ-kəl) adj. Of or relating to the kinetic energy […]

  • Hydrokinetics

    [hahy-droh-ki-net-iks, -kahy-] /ˌhaɪ droʊ kɪˈnɛt ɪks, -kaɪ-/ noun, (used with a singular verb) 1. the branch of hydrodynamics that deals with the laws governing liquids or gases in motion. /ˌhaɪdrəʊkɪˈnɛtɪks; -kaɪ-/ noun 1. (functioning as sing) the branch of science concerned with the mechanical behaviour and properties of fluids in motion, esp of liquids Also […]


    [hahy-druh-lant] /ˈhaɪ drəˌlænt/ noun 1. an urgent warning of navigational dangers in the , issued by the U.S. Navy Hydrographic Office.

  • Hydrolase

    [hahy-druh-leys, -leyz] /ˈhaɪ drəˌleɪs, -ˌleɪz/ noun, Biochemistry. 1. an enzyme that catalyzes hydrolysis. /ˈhaɪdrəˌleɪz/ noun 1. an enzyme, such as an esterase, that controls hydrolysis hydrolase hy·dro·lase (hī’drə-lās’, -lāz’) n. An enzyme that catalyzes the hydrolysis of a substrate through the addition of water.

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