Ring″tail′ (?), n. 1. (Zoöl.) A bird having a distinct band of color across the tail, as the hen harrier.
2. (Naut.) A light sail set abaft and beyong the leech of a boom-and-gaff sail; — called also ringsail.
Ringtail boom(Naut.), a spar which is rigged on a boom for setting a ringtail.