نُخَاعٌ The spinal cord, or spinal marrow; (Ṣ, Ḳ, &c.;) what extends from the هَامَة through (فِى) the vertebræ to the end of the ذَنَب, like a cord of marrow. (Zj in his “Khalk el-Insán.”) See also شَلِيلٌ and البِخَاعُ.