ACTINIDE SERIES


Meaning of ACTINIDE SERIES in English

noun

: a series of heavy radioactive metallic elements of increasing atomic number considered to be analogous to the lanthanide series and to begin with actinium (89) or thorium (90) and end with element of atomic number 103 — compare actinium series , periodic table

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.