Any of numerous species of fishes (family Serranidae) widely distributed in warm seas, especially members of the genera Epinephelus and Mycteroperca. Groupers are characteristically large-mouthed, heavy-bodied fishes. Some species grow larger than 6 ft (about 2 m) long and heavier than 500 lb (225 kg). Groupers are usually dull green or brown; some species can change their colour pattern, and deepwater individuals may be much redder than nearshore ones. They are prime food fishes, though a few species carry a toxic substance in their flesh and can cause poisoning when consumed, and they provide sport for anglers and spearfishermen. See also jewfish; sea bass.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on grouper, visit

Seen & Heard

What made you look up grouper? Please tell us what you were reading, watching or discussing that led you here.

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More