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Related to deuterium: deuterium oxide


 (D) [doo-tēr´e-um]
the mass 2 isotope of hydrogen; it is available as a gas or heavy water and has been used as a tracer or indicator in metabolic studies.


/deu·te·ri·um/ (D) (doo-tēr´e-um) see hydrogen.

deuterium (H)2

Etymology: Gk, deuteros, second
a stable isotope of the hydrogen atom, used as a kinetic tracer. Also called heavy hydrogen. See also tritium.

hy·dro·gen 2

(2H) (hī'drō-jen)
The isotope of hydrogen 2 of atomic weight 2; the less common stable isotope of hydrogen-2 making up 0.015% of the hydrogen-2 atoms occurring in nature.
Synonym(s): deuterium.


1. Gaseous element, atomic no. 1, atomic wt. 1.00794.
2. Molecular form (H2) of the element.
[hydro- + G. -gen, producing]


the mass 2 isotope of hydrogen, symbol 2H or D; it is available as a gas or heavy water and is used as a tracer or indicator in studying metabolism.
References in periodicals archive ?
The deuterium content of the resultant gas was compared with that of known calibrators, using a Sira 10 (VG Instruments) equipped with a dual inlet, and the results were converted to the SMOW/SLAP scale.
Analyzing the hydrogen atoms trapped inside the glass revealed deuterium levels as low as 122 parts per million, roughly 22 percent less than the 156 ppm found in seawater.
Despite this, the probability of neutron depolarization in the deuterium target is a more serious problem than for p(n,[gamma])d.
Bee Koon Poh, from the Kebangsaan University in Malaysia commented on the importance of meeting as an inter-regional networking opportunity, adding, we have made new friends from around the world who have expertise in different areas of the deuterium dilution technique.
Hydrogen and deuterium show up in many molecules, not just water.
Models suggest that Kuiper Belt bodies should have less deuterium than objects originating farther away.
Experimental efforts to develop intense UCN sources with solid deuterium (SD2) as a UCN converter material are carried out worldwide: the Los Alamos National Laboratory (LANL) project for the beta decay asymmetry study at the pulsed spallation source where they recently recorded the highest UCN density [2], the PSI project to utilize the cyclotron spallation neutrons [3,4], and also the reactor SD2 experiment [5] and UCN source projects [6,7].
For years the IAEA has been working with Member States in promoting the use of the deuterium oxide dose-to-mother method, a stable isotope technique that allows health workers to collect data on breastfeeding practices in a precise, specific and accurate fashion, said Victor Owino, Nutrition Scientist at the IAEA, and a keynote speaker at a plenary session at the 7th African Nutrition and Epidemiology Conference, entitled Nutrition Dynamics in Africa: Opportunities and Challenges for Meeting the Sustainable Development Goals, held from October 9-14 in Marrakech, Morocco.