phenocryst

play
noun phe·no·cryst \ˈfē-nə-ˌkrist\

Definition of phenocryst

  1. :  one of the prominent embedded crystals of a porphyry

phenocrystic

play \ˌfē-nə-ˈkri-stik\ adjective

Origin and Etymology of phenocryst

French phénocryste, from Greek phainein to show + krystallos crystal — more at fancy


First Known Use: 1889


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