[pawr-fuh-rahyz] /ˈpɔr fəˌraɪz/
verb (used with object), porphyrized, porphyrizing.
to subject to .
porphyroblast (pôr-fîr’ē-ə-blāst’) A large crystal that is surrounded by a finer-grained matrix in a metamorphic rock. Porphyroblasts form by the recrystallization of existing mineral crystals during metamorphism. They are analogous to phenocrysts in igneous rock.
/ˌpɔːfəˈrɒdʒɪˌnaɪt/ noun 1. (sometimes capital) a prince born after his father has succeeded to the throne
/ˌpɔːfɪˈrɒpsɪn/ noun 1. a purple pigment occurring in the retina of the eye of certain freshwater fishes
[pawr-fuh-roid] /ˈpɔr fəˌrɔɪd/ noun 1. a rock resembling . 2. a sedimentary rock that has been metamorphosed so as to leave some original crystals in a fine-textured, layered matrix. /ˈpɔːfɪˌrɔɪd/ adjective 1. (of metamorphic rocks) having a texture characterized by large crystals set in a finer groundmass noun 2. a metamorphic rock having this texture