a slimy substance, typically not miscible with water, secreted by the mucous membranes and glands of animals for lubrication, protection, etc
(动物黏膜或腺体分泌作润滑或保护用的)黏液。
a gummy substance found in plants; mucilage
(植物的)黏液;粘胶。
" mid 17th cent.: from Latin."