ψιλώθριον

A. depilatory, Thphr. HP 9.20.3, Menemach. ap.Orib. 10.14.1, Crito ap.Gal. 12.447; used of the plant ἄμπελος λευκή, Nic. Th. 902, Dsc. 4.182 (since the root was used as a depilatory, Thphr. l.c.); also ψιλώθριον Hp. Fist. 9.