骨髓腔 gǔ suǐ qiāng 🔊 medullary cavity; marrow cavity of a bone + Keep this word Meanings gǔ suǐ qiāng (anatomy) medullary cavity; marrow cavity of a bone Its characters 骨gǔbone髓suǐbone marrow; (fig.) innermost part腔qiāngcavityHSK 7–9