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2058 entries found
hydroplane (v.)
by 1908, "to skim the surface of water by use of hydroplanes," from hydroplane (n.). Meaning "skid on a thin layer of water" (especially of automobile tires) first recorded 1962, properly aquaplane (itself from 1961 in this sense). Related: Hydroplaned; hydroplaning.
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hydroplane (n.)
"motorboat that glides on the surface of water," 1895, coined by U.S. engineer Harvey D. Williams ["Sibley Journal of Engineering," Cornell University, vol. x, p.81]; from hydro- + ending from airplane.
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hydroponics (n.)
"process of growing plants without soil," 1937, formed in English from hydro- "water" + -ponics, from Greek ponein "to labor, toil," from ponos "labor" (from PIE root *(s)pen- "to draw, stretch, spin"). Related: Hydroponic (adj.).
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hydropower (n.)

"hydroelectric power," 1922, from hydro- (short for hydro-electric) + power (n.).

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hydrosphere (n.)
"the waters of the Earth's surface," 1870, from hydro- + sphere.
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hydrostatic (adj.)
"pertaining to the principles of equilibrium of fluids," 1670s, from hydro- "water" + -static "stabilizing" (see -stat). Related: Hydrostatics (1650s); hydrostatical.
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hydrotherapy (n.)
1842, from hydro- "water" + therapy. Related: Hydrotherapeutic.
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hydrothermal (adj.)
"of or pertaining to heated water," 1855, in geology, from hydro- "water" + thermal (adj.).
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hydrous (adj.)
"containing water," 1812; see hydro- + -ous.
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