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Meaning of phanerocrystalline

phan•e•ro•crys•tal•line

Pronunciation: (fan"u-rō-kris'tl-in, -īn"), [key]
— adj. Petrog.
  1. (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.