n. Chem. an inert gaseous element of the noble gas group, forming a small portion of the earth's atmosphere and used in fluorescent lamps etc. °Symb.: Kr.
[ Gk krupton hidden, neut. adj. f. krupto hide ]
n. Chem. an inert gaseous element of the noble gas group, forming a small portion of the earth's atmosphere and used in fluorescent lamps etc. °Symb.: Kr.
[ Gk krupton hidden, neut. adj. f. krupto hide ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012