noun Etymology: French hydrogène, from hydr- + -gène -gen; from the fact that water is generated by its combustion Date: 1788 a nonmetallic element that is the simplest and lightest of the elements, is normally a colorless odorless highly flammable diatomic gas, and is used especially in synthesis — see element table; compare deuterium, tritiumhydrogenous adjective

New Collegiate Dictionary. 2001.


Look at other dictionaries:

  • Hydrogen — Hy dro*gen, n. [Hydro , 1 + gen: cf. F. hydrog[ e]ne. So called because water is generated by its combustion. See {Hydra}.] (Chem.) A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half… …   The Collaborative International Dictionary of English

  • Hydrogen — Capture d écran …   Wikipédia en Français

  • hydrogen — 1791, from Fr. hydrogène, coined 1787 by G. de Morveau, Lavoisier, Berthollet, and Fourcroy from Gk. hydr , stem of hydros water (see WATER (Cf. water) (n.1)) + Fr. gène producing (see GEN (Cf. gen)). So called because it forms water when exposed …   Etymology dictionary

  • hydrogen — [hī′drə jən] n. [Fr hydrogène (see HYDRO & GEN): coined (1787) by L. B. Guyton de Morveau (1737 1816), Fr chemist, in reference to the generation of water from the combustion of hydrogen] a flammable, colorless, odorless, gaseous chemical element …   English World dictionary

  • Hydrogēn — Hydrogēn, Wasserstoff; Hydrogēngas, Wasserstoffgas. Hydrogēnheizung u. Hydrogēnerleuchtung, Heizung u. Beleuchtung mit Wasserstoffgas, s.d. Hydrogēnpol, der negative Pol einer galvanischen Kette, weil an ihm sich bei der Zerlegung des Wassers das …   Pierer's Universal-Lexikon

  • Hydrogen — Hydrogēn (Hydrogenĭum, grch.), Wasserstoff …   Kleines Konversations-Lexikon

  • Hydrogen — Hydrogen, griech. dtsch., Wasserstoff; H. pol, negativer Pol, s. Galvanismus …   Herders Conversations-Lexikon

  • Hydrogen... — Hydrogen...,   Präfix für die Bezeichnung saurer Salze in der anorganischen Chemie; z. B. Hydrogencarbonate, die sauren Salze der Kohlensäure, Hydrogensulfate, die sauren Salze der Schwefelsäure …   Universal-Lexikon

  • hydrogen — Symbol: H Atomic number: 1 Atomic weight: 1.0079 Colourless, odourless gaseous chemical element. Lightest and most abundant element in the universe. Present in water and in all organic compounds. Chemically reacts with most elements. Discovered… …   Elements of periodic system

  • hydrogen — ► NOUN ▪ a colourless, odourless, highly flammable gas which is the lightest of the chemical elements …   English terms dictionary

  • Hydrogen — This article is about the chemistry of hydrogen. For the physics of atomic hydrogen, see Hydrogen atom. For other meanings, see Hydrogen (disambiguation). ← hydrogen → helium …   Wikipedia

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