Καστόρειος · Kastoreios — LSJ
of, belonging to Castor
of or belonging to Castor: τὸ Κ. μέλος a martial song, set to the flute, used in celebrating victories in the horse or chariot races, Pi. P. 2.69; ὁ Κ. ὕμνος Id. I. 1.16; also, of a battle-march, Plu. Lyc. 22, cf. Mus. 2.1140c, Phld. Vit. p.25 J.
II of the beaver, castor
καστόρειος or καστόριος, α, ον, of the beaver, ὄρχεις Hsch. s.v. κάστωρ; αἷμα Dsc. 2.24:—esp. καστόρειον or καστόριον, τό, castor, secretion found in the body of the beaver, used in medicine, Anon.Lond. 37.51, POxy. 1088.27 (i A.D.), Plu. Adul. 2.55a, Sor. 2.29, Phlp. in GC 65.29, etc.