11) deuterate. The American HeritageŽ Dictionary of the English Language:
Fourth Edition. 2000.
...Inflected forms: deuˇterˇatˇed, deuˇterˇatˇing, deuˇterˇates To introduce deuterium into (a chemical compound). deuter(ium) + -ate1.deuteˇration -NOUN...
12) tracer. The Columbia Encyclopedia, Sixth Edition. 2001
...in 1935 when Rudolf Schoenheimer and David Rittenberg described the use of the isotope deuterium (identical to the hydrogen atom except that it contains an extra...
13) tritium. The Columbia Encyclopedia, Sixth Edition. 2001
...emission. The symbol is T or 3H. It is one form of heavy hydrogen, the other being deuterium. It is usually produced in nuclear reactors as a byproduct of the irradiation...
14) § 6. atomic / nuclear. 4. Science Terms. The American Heritage Book of
English Usage. 1996
...mass of an atom is located. Thus, the nuclear binding energy between a neutron and proton in deuterium (an isotope of hydrogen) is 1.2 million electron volts. Atomic,...
15) molecular weight. The Columbia Encyclopedia, Sixth Edition. 2001
...amu. Both hydrogen and oxygen are made up of several isotopes. One isotope of hydrogen is deuterium, or heavy hydrogen. Atoms of deuterium are about twice as massive...
16) plasma. The Columbia Encyclopedia, Sixth Edition. 2001
...of about 10 million degrees Celsius would be needed to initiate the reaction between deuterium and tritium. By passing a very high electric current through plasma...
17) brown dwarf. The Columbia Encyclopedia, Sixth Edition. 2001
...ignite the hydrogen fusion reaction, but brown dwarfs have only a relatively short period of deuterium (heavy hydrogen) burning before they cool and fade. Their coolness...
18) Urey, Harold Clayton. The Columbia Encyclopedia, Sixth Edition. 2001
...He became professor-at-large at the Univ. of California in 1958. For his isolation of deuterium (heavy hydrogen) he received the 1934 Nobel Prize in Chemistry; he...
19) hydrogen bomb. The Columbia Encyclopedia, Sixth Edition. 2001
...an atomic bomb; surrounding it is a layer of lithium deuteride (a compound of lithium and deuterium, the isotope of hydrogen with mass number 2); around it is a tamper,...
20) nuclear reactor. The Columbia Encyclopedia, Sixth Edition. 2001
...Substances that can be used as moderators include graphite, beryllium, and heavy water (deuterium oxide). The moderator surrounds or is mixed with the fissionable...
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