ROCHE ALUM


Meaning of ROCHE ALUM in English

/rohch/ , Chem.

an alumlike substance derived from alunite.

[ 1400-50; roche cliff, rocky height (now obs.), late ME (see ROCK 1 ); appar. partial trans. of MF alum en roque, alun de roche ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .