Definition of pallasite in US English:

pallasite

noun

  • A meteorite consisting of roughly equal proportions of iron and olivine.

    • ‘It is the famous Pallassovo Zhelezo (Pallass's Iron) meteorite, which gave its name to the entire class of iron-stone meteorites known as pallasites.’
    • ‘Meteorites from one subcategory, the pallasites, contain large crystals of the mineral olivine imbedded in a matrix of metal.’
    • ‘A world record meteorite, a 1400 pound pallasite, has been found near Brenham, Kansas by professional meteorite hunter Steve Arnold.’
    • ‘There is a fine observatory just west of Wichita, and a remarkable meteorite, classified as a pallasite, on display in Greensburg, Kansas.’
    • ‘Pallasites were once thought to originate at the core-mantle boundary of differentiated asteroids that were subsequently shattered through impacts.’

Origin

Mid 19th century: from the name of Peter S. Pallas (1741–1811), German naturalist, + -ite.

Pronunciation

pallasite

/ˈpaləsīt/