alcyŏnēus and -nĭus (halc-), a, um, adj. [Alcyone],
I pertaining to Alcyone or alcyon (v. alcedo).
a Alcyonei dies = alcedonia (q. v.), Col. 11, 2.—
b Alcyoneum medicamen, or absol. : alcyŏnēum , i, n., or even alcyŏnĭum . sea-foam , used as a remedy for spots on the face: alcyoneo utuntur ad oculorum cicatrices, Plin. 32, 8, 27, § 86; cf. Cels. 5, 6, 18, n. 26.