noun🔗ShareネズミイルカA small cetacean of the family Phocoenidae, related to dolphins and whales."While whale watching, we saw a pod of porpoises swimming alongside the boat. "ホエールウォッチング中に、ボートの横を泳いでいるネズミイルカの群れを見ました。animaloceanfishbiologynatureenvironmentChat with AIVocabulary GamePractice Reading
noun🔗Shareネズミイルカ(imprecisely) Any small dolphin."The aquarium showed off several porpoises, which were smaller than the dolphins. "水族館はイルカより小さいネズミイルカをいくつか展示しました。animaloceanfishbiologynatureChat with AIVocabulary GamePractice Reading
verb🔗Share呼吸のために水面から飛び出し、潜水を繰り返すSaid 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 were porpoising playfully in the ocean waves. "イルカたちは海の波の中で楽しそうに水面から飛び跳ねていた。animalbiologyoceannatureactionChat with AIVocabulary GamePractice Reading
verb🔗Share上下に揺れるSaid 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 plane porpoised several times as it took off from the short runway. "小型機は短い滑走路から離陸する際、何度も上下に揺れた。vehiclenauticalsailingtechnicalChat with AIVocabulary GamePractice Reading
