a large spotted whalelike shark, Rhincodon typus, of warm seas, that feeds on plankton and small animals: family Rhincodontidae
whale shark in American English
the only species (Rhiniodon typus) of a family (Rhiniodontidae, order Orectolobiformes) of huge, spotted, egg-laying sharks that live in warm seas, have many small teeth, and feed on plankton and small fishes by means of gill strainers: the largest of fishes, often reaching 15 m (c. 50 ft) in length