Source : Webster's Revised Unabridged Dictionary (1913)

Ringtail \Ring"tail`\, n.
   1. (Zo["o]l.) 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.

Source : WordNet®

ringtail
     n 1: raccoon-like omnivorous mammal of Mexico and the
          southwestern United States having a long bushy tail with
          black and white rings [syn: {bassarisk}, {cacomistle}, {cacomixle},
           {coon cat}, {raccoon fox}, {ring-tailed cat}, {civet
          cat}, {miner's cat}, {Bassariscus astutus}]
     2: North American raccoon [syn: {common raccoon}, {common
        racoon}, {coon}, {Procyon lotor}]
     3: monkey of Central America and South America having a cowl of
        thick hair on the head [syn: {capuchin}, {Cebus capucinus}]
     4: an immature golden eagle