sperm whale
- A large marine mammal belonging to the order Cetacea, known for its massive head and prominent rounded forehead. It is the largest of the toothed whales and is distinguished by its ability to dive to great depths in search of squid, its primary food source. nounThe sperm whale is known for its impressive diving ability, reaching depths of over 2,000 meters.Herman Melville's novel 'Moby-Dick' features a sperm whale as the central antagonist.
- The spermaceti organ, found in the head of the sperm whale, which contains a waxy substance historically used in oil lamps and candles. nounThe spermaceti from sperm whales was highly valued in the 18th and 19th centuries.Whalers hunted sperm whales extensively for their spermaceti and blubber.