さいのう 鰓嚢 LinksSentence search for 鰓嚢Sentence search for さいのうSentence search for えらぶくろKanji details for 鰓 and 嚢Edit in JMdict Noun1. gill sac; branchial sac; branchial pouch; inner branchial groove; pharyngeal pouchOther forms鰓嚢 【えらぶくろ】 Discussions Log in to talk about this word.