mucus/ˈmju:kəs; `mjukəs/ n[U]sticky slimy substance produced by the mucous membrane; any similar slimy substance （黏膜分泌的）黏液; 类似黏液的物质 a nose blocked with mucus 黏液堵塞的鼻子 a trail of mucus left by a snail or slug 蜗牛或蛞蝓留下的黏液痕迹.
牛津英汉双解词典