Halibut is the common name for three flatfish in the genera Hippoglossus and Reinhardtius from the family of right-eye flounders. Wikipedia

Beautifully firm and it gets so nicely golden when you sear it.” Although he and co-chef Cal Elliott don’t usually make a lot of rich sauces, they adore this tangy lemon-butter sauce with fish: “The lemon brightens up the halibut”. Food&Wine

Halibut is the common name for two flatfish in the genus Hippoglossus from the family of right-eye flounders and, in some regions, and less commonly, other species of large flatfish. Wikipedia