PROTIUM


Meaning of PROTIUM in English

n.

Pronunciation: ' pr ō -t ē - ə m, ' pr ō -sh ē -

Function: noun

Etymology: New Latin, from Greek pr ō tos first

Date: 1933

: the ordinary light hydrogen isotope of atomic mass 1

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.