tritium

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈtrɪtɪəm/US:USA pronunciation: respellingUSA pronunciation: respelling(trit′ē əm, trish′-, trish′əm)


WordReference Random House Unabridged Dictionary of American English © 2025
trit•i•um  (trit′ē əm, trish′-, trish′əm),USA pronunciation n. [Chem.]
  1. Chemistryan isotope of hydrogen having an atomic weight of three.
  • Greek trít(os) third (tri- tri- + -tos adjective, adjectival suffix) + Neo-Latin -ium -ium
  • Neo-Latin
  • 1930–35

Collins Concise English Dictionary © HarperCollins Publishers::
tritium / ˈtrɪtɪəm/
  1. a radioactive isotope of hydrogen, occurring in trace amounts in natural hydrogen and produced in a nuclear reactor. Tritiated compounds are used as tracers. Symbol: T or 3H; half-life: 12.5 years
Etymology: 20th Century: New Latin, from Greek tritos third
'tritium' also found in these entries (note: many are not synonyms or translations):
H, h - ICF - T - hydrogen - triton

Forum discussions with the word(s) "tritium" in the title:


Look up "tritium" at Merriam-Webster
Look up "tritium" at dictionary.com
  • Go to Preferences page and choose from different actions for taps or mouse clicks.

In other languages: Spanish | French | Italian | Portuguese | Romanian | German | Dutch | Swedish | Russian | Polish | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic

Advertisements
Advertisements
Report an inappropriate ad.
WordReference.com
WORD OF THE DAY
GET THE DAILY EMAIL!

Become a WordReference Supporter to view the site ad-free.