[ 'grʌɪz(ə)n ]
■ noun Geology a light-coloured rock resulting from the alteration of granite by hot vapour from magma.
Origin
C19: from Ger., prob. a dialect word, from greis 'grey with age'.
[ 'grʌɪz(ə)n ]
■ noun Geology a light-coloured rock resulting from the alteration of granite by hot vapour from magma.
Origin
C19: from Ger., prob. a dialect word, from greis 'grey with age'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004