orthopyroxene

British

/ ˌɔːθəʊpaɪˈrɒksiːn /

noun

a member of the pyroxene group of minerals having an orthorhombic crystal structure, such as enstatite and hypersthene

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

orthopyroxene Scientific

/ ôr′thə-pī-rŏk′sēn′ /

Any variety of the mineral pyroxene that crystallizes in the orthorhombic system and contains no calcium and little or no aluminum. Enstatite is an orthopyroxene.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023