A chemical compound containing two hydrogen atoms bonded to another element, such as calcium dihydride or silicon dihydride.
From 'di-' (two) + 'hydride' (a compound of hydrogen with another element). The term became standard in inorganic chemistry during the 20th century as scientists studied metal and nonmetal hydrides.
Some dihydrides are like hidden power sources in chemistry—calcium dihydride, for example, reacts so vigorously with water that it's been used as an emergency light source and water purifier in survival kits.
Complete word intelligence in one call. Free tier — 50 lookups/day.