[hahy-druh-foil] /ˈhaɪ drəˌfɔɪl/
Naval Architecture. a surface form creating a thrust against water in a direction perpendicular to the plane approximated by the surface.
a fast light vessel the hull of which is raised out of the water on one or more pairs of fixed vanes
any of these vanes
1959, “boat that travels through water on wings,” short for hydrofoil boat, originally the name of the “wings” themselves (1920); formed in English from hydro- + foil (n.).
[hahy-druh-fawr-ming] /ˈhaɪ drəˌfɔr mɪŋ/ noun 1. the production of high-octane aromatic compounds for motor fuels by catalytic of naphthas in the presence of hydrogen. /ˈhaɪdrəʊˌfɔːmɪŋ/ noun (chem) 1. the catalytic reforming of petroleum to increase the proportion of aromatic and branched-chain hydrocarbons 2. (engineering) a forming process in which a metal component is shaped by […]
[hahy-drey-ter] /ˈhaɪ dreɪ tər/ noun 1. something that . 2. a compartment or drawer, as in a refrigerator, for keeping perishable foods fresh and preventing moisture loss.
noun 1. the number of molecules of water with which an ion can combine in an aqueous solution of given concentration.
[hahy-droh-frak-cher-ing, hahy-droh-frak-] /ˌhaɪ droʊˈfræk tʃər ɪŋ, ˈhaɪ droʊˌfræk-/ noun 1. . noun 1. a process in which fractures in rocks below the earth’s surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.