释义 |
por·poise I. \ˈpȯrpəs, -ȯəp-\ noun (-s) Etymology: Middle English porpeys, porpoys, from Middle French porpeis, porpois, from Medieval Latin porcopiscus, from Latin porcus pig + piscis fish — more at farrow, fish 1. : any of various small gregarious toothed whales of the genus Phocaena having a blunt rounded snout that does not form a projecting beak; especially : a common toothed whale (P. phocaena) of the north Atlantic and Pacific that is 5 to 8 feet long and usually blackish above and whitish below — called also harbor porpoise; compare dolphin 1a 2. : any of various small toothed cetaceans; especially : any such cetacean with a short beak (as a member of the genus Cephalorhynchus of the southern hemisphere) 3. : any of several dolphins (as the common dolphin or the bottle-nosed dolphins) 4. : a synchronized swimming stunt consisting of a headfirst surface dive executed in either pike or tuck position to a point of complete vertical submergence II. intransitive verb (-ed/-ing/-s) 1. : to leap or plunge like a porpoise < penguins porpoised away on all sides — National Geographic > 2. of an underwater craft or object : to break the surface of the water : broach 3. of an airplane or surface craft : to slap the surface : skip |