Read Edit View history 窦道 dòudào sinus Origin Definitions Defs Strokes Stroke Words Sentences Sents 窦道 (竇道) dòudào sinus noun a narrow tract or channel leading from an internal focus of infection to the body surface or a cavity underground passage noun a subterranean passage or tunnel Sources Definitions CC-CEDICT
窦道 (竇道) dòudào sinus noun a narrow tract or channel leading from an internal focus of infection to the body surface or a cavity underground passage noun a subterranean passage or tunnel Sources Definitions CC-CEDICT