First Known Use: 1893
Dictionary
phenocryst
noun phe·no·cryst \-ˌkrist\
Definition of PHENOCRYST
: one of the prominent embedded crystals of a porphyry
— phe·no·crys·tic \ˌfē-nə-ˈkris-tik\ adjective
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Origin of PHENOCRYST
French phénocryste, from Greek phainein to show + krystallos crystal — more at fancy
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