pyrolite
/ˈpʌɪrəlʌɪt/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.
- headmark
- headmaster
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- head matter
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- headmistress
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- headmount
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- headnote