柯林斯詞典speleology (also spelaeology) 1. N the scientific study of caves, esp in respect of their geological formation, flora and fauna, etc (關于其地質構成、植物和動物群系等的)洞穴學 返回 speleology劍橋詞典geology the scientific study of caves 洞穴學 sports the sport of walking and climbing in caves 洞穴運動；洞穴探險 返回 speleology