Chem.
a substance, formed by decay of radon, that gives rise to radium B.
[ 1900-05 ]
RADIUM A
Meaning of RADIUM A in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012
Chem.
a substance, formed by decay of radon, that gives rise to radium B.
[ 1900-05 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012