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tritium
(redirected from H 3)

    Also found in: Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
tritium /trit·i·um/ (trit´e-um) see hydrogen.
trit·i·um (trt-m, trsh-)
n. Symbol T
A rare radioactive hydrogen isotope with atomic mass 3 and half-life 12.5 years, prepared artificially for use as a tracer and as a constituent of hydrogen bombs. Also called hydrogen-3.
tritium (3H)
[trit′ē·əm, trish′əm]
Etymology: Gk, tritos, third
the radioactive isotope of the hydrogen atom, used as a tracer; a beta emitter. See also deuterium, protium.
tritium
the mass 3 isotope of hydrogen, symbol 3H, obtained by bombardment of beryllium in the cyclotron with deuterium ions. It has a half-life of about 31 years, and is used as an indicator or tracer in metabolic studies. See also tritiated thymidine.


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