noun🔗Share익족류Any 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. "맑고 열대 해역에서 스노클링을 하는 동안, 우리는 수백 마리의 작은 익족류가 작은 나비처럼 바다를 가로질러 날아다니는 것을 보았습니다.animaloceanbiologynatureChat with AIVocabulary GamePractice Reading