Vocabulary What does 脊髄 (せきずい, sekizui) mean? 脊髄 (せきずい, sekizui) means spinal cord. Quick factsReadingせきずいRomajisekizuiPart of speechnoun 脊髄せきずいsekizuispinal cord1noun spinal cordKanji in this word脊spine, backbone髄marrow; core, essence