髄 suǐ bone marrow Definitions Defs Origin Strokes Stroke Words Sentences Sents 髄 suǐ marrow (bound form) bone marrow; the innermost part of something; the pith of a plant Cross-References Variant of 髓 suǐ Frequency Written text 0.003 per million Details Strokes 18 Unicode U+9AC4 Sources Frequency data BCC Corpus (BLCU)