1 a : a soft usually white fibrous substance composed of the hairs surrounding the seeds of various erect freely branching tropical plants (genus Gossypium) of the mallow family b ...
1 : the soft wavy or curly usually thick undercoat of various hairy mammals and especially the sheep made up of a matrix of keratin fibers and covered with minute scales
2 : a ...
1 : a fine continuous protein fiber produced by various insect larvae usually for cocoons; especially : a lustrous tough elastic fiber produced by silkworms and used for ...
20 用語
