noun🔗ShareAny 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. "animaloceanbiologynatureChat with AIVocabulary GamePractice Reading
