hydrocortisone
- n an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism
hydrocortone
- n an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism
hydrocracking
- n the process whereby hydrocarbon molecules of petroleum are broken down into kerosene and gasolene by the addition of hydrogen under high pressure in the presence of a catalyst
hydrocyanic acid
- n a solution of hydrogen cyanide in water; weak solutions are used in fumigating and in the synthesis of organic compounds
hydrodamalis
- n a genus of the family Dugongidae comprising only Steller's sea cow
hydrodamalis gigas
- n extinct large sirenian mammal formerly found near the Asiatic coast of the Bering Sea
hydrodiuril
- n a diuretic drug (trade name Microzide, Esidrix, and HydroDIURIL) used in the treatment of hypertension
hydroelectric turbine
- n turbine consisting of a large and efficient version of a water wheel used to drive an electric generator
hydrofluoric acid
- n a weak poisonous liquid acid; formed by solution of hydrogen fluoride in water
hydrofluorocarbon
- n a fluorocarbon emitted as a by-product of industrial manufacturing
hydrofluosilicic acid
- n an unstable poisonous corrosive acid known primarily in the form of its salts
hydrofoil
- n a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through
the fins of a fish act as hydrofoils - n a speedboat that is equipped with winglike structures that lift it so that it skims the water at high speeds