[ 'amfɪbəʊl ]
■ noun any of a class of rock-forming silicate or aluminosilicate minerals typically occurring as fibrous or columnar crystals.
Origin
C19: from Fr., from L. amphibolus 'ambiguous' (because of the varied structure of the minerals).
[ 'amfɪbəʊl ]
■ noun any of a class of rock-forming silicate or aluminosilicate minerals typically occurring as fibrous or columnar crystals.
Origin
C19: from Fr., from L. amphibolus 'ambiguous' (because of the varied structure of the minerals).
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004