noun , Malchus a.d. c233–c304, Greek philosopher. Related forms Por·phyr·e·an , [pawr- feer-ee- uh n] /pɔrˈfɪər i ən/ adjective Por·phyr·i·an, adjective, noun Por·phyr·i·an·ist, noun
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for malchus-porphyry noun plural -ries any igneous rock with large crystals embedded in a finer groundmass of minerals obsolete a reddish-purple rock consisting of large crystals of feldspar in a finer groundmass of feldspar, hornblende, etc Word Origin for porphyry
porfurie, from Late Latin porphyrītēs, from Greek porphuritēs ( lithos) purple (stone), from porphuros purple noun original name Malchus. 232–305 ad, Greek Neo-Platonist philosopher, born in Syria; disciple and biographer of Plotinus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for malchus-porphyry n.
type of ornamental stone, late 14c.,
porfurie, from Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites, a purple semi-precious stone quarried near the Red Sea in Egypt, from Greek porphyrites (lithos) "the purple (stone)," from porphyra (n.) "purple, purple dye" (see purple). Spelling Latinized mid-15c. Now used generally for a type of igneous rock without regard to color. Porphyrios was an ancient proper name.
Online Etymology Dictionary, © 2010 Douglas Harper
malchus-porphyry in Science An igneous rock containing the large crystals known as phenocrysts embedded in a fine-grained matrix. Related forms porphyritic adjective ( pôr′fə-rĭt) ′ĭk
The American Heritage® Science Dictionary
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