'Headfish' definitions:

Definition of 'headfish'

(from WordNet)
noun
Among the largest bony fish; pelagic fish having an oval compressed body with high dorsal and anal fins and caudal fin reduced to a rudder-like lobe; worldwide in warm waters [syn: ocean sunfish, sunfish, mola, headfish]

Definition of 'Headfish'

From: GCIDE
  • Headfish \Head"fish`\ (h[e^]d"f[i^]sh`), n. (Zool.) The sunfish (Mola). Head gear