醋酸纤维 cùsuānxiānwéi cellulose acetate Origin Definitions Defs Strokes Stroke Words Sentences Sents 醋酸 cùsuān acetic acid acetic acid; acetate; also known as 乙酸 yǐsuān纤维 纖維 xiānwéi noun fiber A thread-like material of natural or synthetic origin used in textiles or industry (such as cotton or nylon), or a long, thin cell or tissue in organisms that provides structural support (such as connective tissue or muscle fiber).