Definition of labrax in US English:

labrax

noun

historical
  • In classical literature: a predatory marine fish, usually considered to be the European sea bass, Dicentrarchus labrax. Formerly also (in form Labrax): †a genus comprising the sea basses and temperate basses now placed in the genera Dicentrarchus, Morone, and Lateolabrax; a fish of this genus (obsolete).

Origin

Early 17th century; earliest use found in Philemon Holland (1552–1637), translator. From ancient Greek λάβραξ kind of sea fish, bass from λάβρος turbulent (of uncertain origin) + -αξ, suffix forming nouns.