Medical Dictionary


noun tri·ti·um \ˈtrit-ē-əm, ˈtrish-ē-\

Medical Definition of TRITIUM

:  a radioactive isotope of hydrogen with atoms of three times the mass of ordinary light hydrogen atoms—symbol T


How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears