Por`phy*ro*gen"i*tism\, n. [LL. porphyro genitus, fr. Gr. ?; ? purple + root of ? to be born.] The principle of succession in royal families, especially among the Eastern Roman emperors, by which a younger son, if born after the accession of his father to the throne, was preferred to an elder son who was not so born. --Sir T. Palgrave.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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