[ 'rəʊtənəʊn ]
■ noun Chemistry a toxic crystalline substance obtained from the roots of derris and related plants, widely used as an insecticide.
Origin
1920s: from Japanese rotenon (from roten 'derris') + -one .
[ 'rəʊtənəʊn ]
■ noun Chemistry a toxic crystalline substance obtained from the roots of derris and related plants, widely used as an insecticide.
Origin
1920s: from Japanese rotenon (from roten 'derris') + -one .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004