Webster's Revised Unabridged Dictionary · 1913

Phenocryst

Phenocryst , noun

[Greek fai`nesqai to appear + kry`stallos crystal.]

(Geology) One of the prominent embedded crystals of a porphyry.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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