PROTACTINIUM


Meaning of PROTACTINIUM in English

transcription, транскрипция: [ ˌprō-ˌtak-ˈti-nē-əm ]

noun

Etymology: New Latin

Date: 1918

: a shiny radioactive metallic element of relatively short life — see element table

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.