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Definition of Philippium
1. n. A rare and doubtful metallic element said to have been discovered in the mineral samarskite.
Definition of Philippium
1. Noun. (chemistry obsolete) A supposed metallic element obtainable from samarskite, later discovered to be a mixture of yttrium and terbium. ¹
¹ Source: wiktionary.com
Medical Definition of Philippium
1.