bast
/bæst/noun
(亦作bast fibre)［mass noun］
1- 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）。
1.1
- Botany the phloem or vascular tissue of a plant【植】韧皮部; 韧皮纤维。
词源
Old English bæst; related to Dutch bast, German Bast; of unknown origin.