Definition of moonfish in US English:

moonfish

noun

  • A deep-bodied laterally compressed marine fish.

    an opah

    a silvery fish of the jack family (Carangidae), including Selene setapinnis of the Atlantic

    • ‘Oceana's scientists attribute the Mediterranean invasion partly to the overfishing of jellyfish predators there, including moonfish, triggerfish, and leatherback turtles, which are often caught accidentally as bycatch.’
    • ‘Sometimes a moonfish or a sailfish might show up while freely enjoying the open ocean.’
    • ‘The moonfish is swimming in a tank of water.’
    • ‘One fish I wish I could see with my own eyes is the brilliant opah, or moonfish.’

Pronunciation

moonfish

/ˈmo͞onˌfiSH//ˈmunˌfɪʃ/