Lamprophyre Definition

lămprə-fīr
noun
A dark igneous rock, having porphyritic texture, in which both the phenocrysts and the matrix consist of hornblende, pyroxene, and biotite.
American Heritage

Other Word Forms of Lamprophyre

Noun

Singular:
lamprophyre
Plural:
lamprophyres

Origin of Lamprophyre

  • German Lamprophyr Greek lampros clear (from lampein to shine) French porphyre porphyry (from Old French porfire porphyry)

    From American Heritage Dictionary of the English Language, 5th Edition

  • Ancient Greek λαµπρός (laµpros) (lamprós) = "bright" and φύρω (phurō) (phýro) = "to mix".

    From Wiktionary

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lamprophyre