Noun

(en-noun)

A large flatfish of the genus Hippoglossus , which sometimes leaves the ocean floor and swims vertically.

* {{quote-book

, year=1960 , author= , title=(Jeeves in the Offing) , section=chapter IV , passage=[...] she frowned a displeased frown and told me for heaven's sake to stop goggling like a dead halibut .}}