lithocyst /'liθәsist/ 📖 中文释义 n. [动](内含平衡石的)石囊 📘 English Definition(英文释义) n. A sac containing small, calcareous concretions(otoliths). They are found in many Medusae, and other invertebrates,and are supposed to be auditory organs. ← lithoconion L 字母词表 lithocystotomy →