/saɪˈnəʊviəl ||; sɪˈnovɪəl/adj (technical术语) connected with a type of JOINT(= a place where two bones meet) that has a piece of very thin skin (membrane) containing liquid between the bones, which allows the joint to move freely 与滑膜关节有关的: a synovial joint/membrane 滑膜关节；滑膜