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单词 porpoise
释义

WordReference Random House Learner's Dictionary of American English © 2024
por•poise /ˈpɔrpəs/USA pronunciation   n., pl. (esp. when thought of as a group) -poise, (esp. for kinds or species) -pois•es, v., -poised, -pois•ing. 
n. [countable]
  1. Mammalsa marine mammal having a blunt, rounded snout and resembling a dolphin.

v. [no object]
  1. Nautical, Naval Terms(of a speeding motorboat) to leap clear of the water after striking a wave.

WordReference Random House Unabridged Dictionary of American English © 2024
por•poise  (pôrpəs),USA pronunciation n., pl. (esp. collectively) -poise,  (esp. referring to two or more kinds or species) -pois•es, v., -poised, -pois•ing. 
n. 
  1. Mammalsany of several small, gregarious cetaceans of the genus Phocoena, usually blackish above and paler beneath, and having a blunt, rounded snout, esp. the common porpoise, P. phocoena, of both the North Atlantic and Pacific.
  2. Mammalsany of several other small cetaceans, as the common dolphin, Delphinus delphis.

v.i. 
  1. Nautical, Naval Terms(of a speeding motorboat) to leap clear of the water after striking a wave.
  2. (of a torpedo) to appear above the surface of the water.
  3. to move forward with a rising and falling motion in the manner of a porpoise:The car has a tendency to porpoise when overloaded.
  • Vulgar Latin *porcopiscis hog fish, for Latin porcus marīnus sea hog
  • Middle French porpois
  • Middle English porpoys 1275–1325
porpoise•like′, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
porpoise /ˈpɔːpəs/ n ( pl -poises, -poise)
  1. any of various small cetacean mammals of the genus Phocaena and related genera, having a blunt snout and many teeth: family Delphinidae (or Phocaenidae)
  2. (not in technical use) any of various related cetaceans, esp the dolphin
Etymology: 14th Century: from French pourpois, from Medieval Latin porcopiscus (from Latin porcus pig + piscis fish), replacing Latin porcus marīnus sea pig
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