[ 'hʌɪpəsθi:n ]
■ noun a greenish rock-forming mineral consisting of a magnesium iron silicate.
Origin
C19: coined in Fr., from hyper- + Gk sthenos 'strength' (because it is harder than hornblende).
[ 'hʌɪpəsθi:n ]
■ noun a greenish rock-forming mineral consisting of a magnesium iron silicate.
Origin
C19: coined in Fr., from hyper- + Gk sthenos 'strength' (because it is harder than hornblende).
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004