noun🔗ShareA small cetacean of the family Phocoenidae, related to dolphins and whales."The marine biologist observed a playful porpoise near the research vessel. "animaloceanbiologynaturefishChat with AIVocabulary GamePractice Reading
noun🔗Share(imprecisely) Any small dolphin."The marine park had dolphins and a porpoise, which is like a smaller kind of dolphin. "animaloceanfishbiologynatureChat with AIVocabulary GamePractice Reading
verb🔗ShareSaid of an air-breathing aquatic animal such as a porpoise or penguin: To repeatedly jump out of the water to take a breath and dive back in a continuous motion."The dolphins porpoised playfully, leaping repeatedly out of the water and diving back in. "animalbiologyoceannatureactionChat with AIVocabulary GamePractice Reading
verb🔗ShareSaid of an aircraft: to make a series of plunges when taking off or landing; or of a watercraft: to successively plunge up and down in the water."The small seaplane began to porpoise violently as it attempted to land on the choppy lake, making it difficult for the pilot to control. "nauticalvehiclesailingtechnologyChat with AIVocabulary GamePractice Reading
