1. (of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals

See also: porphyry

Encyclopedia: Porphyritic

• affenpinscher
• afferent
• afferent fiber
• afferent nerve
• afferent neuron
• affiance
• affiant
• affidavit
• affiliate
• affiliated
• affiliation
• affinal
• affine
• affine geometry
• affine transformation
• affined
• affinity
• affirm
• affirmable
• affirmation
• affirmative
• affirmative action
• affirmative pleading
• affirmatively
• affirmativeness