Definition of pyrolite in English:

pyrolite

noun

  • A material which (according to some models) is regarded as typical of the earth's upper mantle, corresponding in composition to a mixture of basalt and dunite (peridotite), or to the minerals pyroxene and olivine.

Origin

1960s. From pyr- + ol- + -ite.

Pronunciation

pyrolite

/ˈpʌɪrəlʌɪt/