(Physics)(物理)the curved upper surface of a liquid in a tube 弯(月)液面 ■[usu. as modifier]a lens that is convex on one side and concave on the other 弯月形透镜,凹凸透镜 ■(Anatomy)a thin fibrous cartilage between the surfaces of some joints, e.g. the knee (剖)半月板
派生 语源
late 17th cent.: modern Latin, from Greek mēniskos 'crescent', diminutive of mēnē 'moon'