myelin /'maiәli(:)n/ 📖 中文释义 [化] 髓磷脂[医] 髓磷脂; 髓鞘质 📘 English Definition(英文释义) n. a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers ← myelic M 字母词表 myelin globules →