noun🔗Share翼足類Any of free-swimming pelagic sea snails and sea slugs, of the suborder Thecosomata, that have winglike lobes on the feet; a sea butterfly."While snorkeling in the clear, tropical waters, we saw hundreds of tiny pteropods fluttering through the ocean like little butterflies. "透明な熱帯の海でシュノーケリングをしていたとき、私たちは何百もの小さな翼足類が小さな蝶のように海を舞っているのを見ました。animaloceanbiologynatureChat with AIVocabulary GamePractice Reading