noun🔗Shareオペルクルム、蓋A covering flap in animals, such as a gill cover."The fish opened and closed its operculum, allowing it to breathe underwater. "魚はオペルクルムを開閉し、水中で呼吸できるようにしました。organismanimalbiologyanatomyfishpartChat with AIVocabulary GamePractice Reading
noun🔗Share蓋、胞子や種子の散布を可能にするために分離するコケの胞子嚢または果実の蓋状の部分The lidlike portion of a moss sporangium or of a fruit that detaches to allow the dispersal of spores or seeds."The operculum on the moss capsule popped open, releasing a cloud of tiny spores into the air. "コケの胞子嚢の蓋が開き、微小な胞子の雲を空中に放出しました。plantpartbiologyseedChat with AIVocabulary GamePractice Reading
noun🔗Share歯肉弁A gum flap covering (part of) a partially erupted tooth, usually a wisdom tooth."The dentist carefully removed the operculum, allowing the wisdom tooth to finally emerge. "歯科医は歯肉弁を慎重に除去し、親知らずがついに現れるようにしました。medicineanatomybodypartChat with AIVocabulary GamePractice Reading
noun🔗Share蓋, ふたA structure which serves as a cover or lid."The snail closed its operculum, sealing itself safely inside its shell. "カタツムリは蓋を閉じて、殻の中に安全に閉じ込めました。partbiologyanatomystructureorganismChat with AIVocabulary GamePractice Reading
