hydrogen-bomb
— Udsagnsord
– Engelsk
～ attack with a hydrogen bomb
heavy hydrogen
— Navneord
– Engelsk
～ an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
hydrogen bromide
— Navneord
– Engelsk
～ a colorless gas that yields hydrobromic acid in solution with water
hydrogen azide
— Navneord
– Engelsk
～ a colorless explosive liquid that is volatile and poisonous and foul-smelling
hydrogen chloride
— Navneord
– Engelsk
～ a colorless corrosive gas (HCl)
hydrogen
— Navneord
– Engelsk
～ a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
hydrogen fluoride
— Navneord
– Engelsk
～ a colorless poisonous corrosive liquid made by the action of sulphuric acid on calcium fluoride; solutions in water are hydrofluoric acid
hydrogen bond
— Navneord
– Engelsk
～ a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond
hydrogen cyanide
— Navneord
– Engelsk
～ a highly poisonous gas or volatile liquid that smells like bitter almonds; becomes a gas at around 90 degree Fahrenheit and is most dangerous when inhaled; the anhydride of hydrocyanic acid; used in manufacturing
hydrogen bomb
— Navneord
– Engelsk
～ a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium