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Meaning of orthophyric

or•tho•phy•ric

Pronunciation: (ôr"thu-fī'rik), [key]
— adj. Petrog.
  1. of or pertaining to a texture in which the groundmass is characterized by closely packed, short, quadrilateral crystals of feldspar larger than those in a trachytic groundmass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.