deuterium
noun Etymology: New Latin, from Greek deuteros second Date: 1933 an isotope of hydrogen that has one proton and one neutron in its nucleus and that has twice the mass of ordinary hydrogen — symbol D; called also heavy hydrogen

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Deuterium — Deutérium Hydrogène 2 table General Nom, Symbole deutérium, 2H Neutrons 1 Protons 1 …   Wikipédia en Français

  • deutérium — [ døterjɔm ] n. m. • 1934; de deutér(o) et ium ♦ Phys., chim. Élément atomique (D; no at. 1; m. at. 2), isotope stable de l hydrogène, appelé aussi hydrogène lourd, et dont le noyau (⇒ deuton) contient un proton et un neutron. Le deutérium,… …   Encyclopédie Universelle

  • deuterium — Symbol: D Atomic weight: 2 A hydrogen atom which has but one proton and neutron. Deuterium makes up about 0.015% of all natural hydrogen. Chemical properties are like that of normal hydrogen, though somewhat slower …   Elements of periodic system

  • Deuterium — См. Дейтерий Термины атомной энергетики. Концерн Росэнергоатом, 2010 …   Термины атомной энергетики

  • deuterium — DEUTÉRIUM s.n. v. deuteriu. Trimis de LauraGellner, 13.09.2007. Sursa: DN …   Dicționar Român

  • deuterium — 1933, coined by U.S. chemist Harold C. Urey, with Mod.L. ending, from Gk. deuterion, neut. of deuterios having second place. So called because it is twice the mass of hydrogen …   Etymology dictionary

  • deuterium — ► NOUN Chemistry ▪ a stable isotope of hydrogen with a mass approximately twice that of the usual isotope. ORIGIN Latin, from Greek deuteros second …   English terms dictionary

  • deuterium — ☆ deuterium [do͞o tir′ē əm, dyo͞otir′ē əm ] n. [ModL: see DEUTERO & IUM] a hydrogen isotope used in nuclear reactors, accelerators, etc.: symbol, D; at. wt., 2.0141: see HEAVY WATER …   English World dictionary

  • Deuterium — Hydrogen 2 Full table General Name, symbol deuterium, 2H or D Neutrons 1 …   Wikipedia

  • Deutérium — Hydrogène 2 table Général Nom, Symbole deutérium, 2H Neutrons 1 Protons 1 Donn …   Wikipédia en Français

  • Deuterium — Strukturformel Allgemeines Name Deuterium Andere Namen …   Deutsch Wikipedia

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