porphyrin

(por’fi-rin). 1. An iron-free derivative from hematin. Cf. hem a top or phyrin and mwsoporphyrin. 2. An alkaloid from the bark of Pal’a constric'ta. ᾿ porphyrization (por’fir-iz-a’shun). Pulverization; reduction to a powder: so called because sometimes performed on a porphyry tablet. porphyruria (por-fir-u're-ah) [Gr. πορφύρα purple + odpov urine]. The presence of purpurin (uroerythrin) in the urine. porrigo (por-i’go) [L.]. eases of the scalp. Ring-worm or other dis- . Gecal’vans. Same as alopecia are at a. yp. favo’sa. Same as favus. Ῥ. fur’furans, tinea tonsurans. p. larva’lis, eczema with impetigo of the scalp. Ῥ. lupino’sa, favus. Porro’s operation (por’sz) physician in Milan, 1842-1902]. See operation. porta (por’tah) [L. “ gate]. The hilum at which the ve els and nerves enter a gland. p. hep’- at is, the transverse fi ure of the liver: here the portal vein enters that organ. p. lie’nis, the hilum of the spleen. p. pulmo’nis, the hilum of the lung. Ῥ. re‘nis, hilum of the kidney.