noun🔗ShareA crack or opening, as in a rock."The hiker carefully avoided the fissure in the rock face. "geologynatureenvironmentChat with AIVocabulary GamePractice Reading
noun🔗ShareA groove, deep furrow, elongated cleft or tear; a sulcus."The earthquake left a large fissure in the road, making it difficult to drive. "geologyanatomymedicinephysiologystructuregappartChat with AIVocabulary GamePractice Reading
verb🔗ShareTo split, forming fissures."The pressure from the crowd caused the wooden floorboards to fissure and crack open. "geologynatureChat with AIVocabulary GamePractice Reading