noun Etymology: French hypersthène, from Greek hyper- + sthenos strength Date: circa 1808 an orthorhombic grayish or greenish black or dark brown pyroxene, hypersthenic adjective
HYPERSTHENE
Meaning of HYPERSTHENE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012