(亦作 bast fibre)[mass noun]fibrous material from a plant, in particular the inner bark of a tree such as the lime, used as fibre in matting, cord, etc. (尤指取自树木内皮的)纤维材料(用来制席、绳索等) ■(Botany)the phloem or vascular tissue of a plant (植)韧皮部;韧皮纤维
语源
Old English bæst; related to Dutch bast, German Bast; of unknown origin