istiophorus ( synonym found)
Definition of istiophorus:

°a chemical element (symbol P) with an atomic number of 15, that exists in several allotropic forms.
°(obsolete) any substance exhibiting phosphorescence; a phosphor.
Definition of istiophorus:

°a chemical element (symbol P) with an atomic number of 15, that exists in several allotropic forms.
°(obsolete) any substance exhibiting phosphorescence; a phosphor.
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