coir
noun/ˈkɔɪə(r)/
/ˈkɔɪər/
[uncountable]- stiff fibres (= strings) from the husks (= outer layer) of coconuts, used for making ropes, for covering floors, etc.
来自椰子壳（=外层）的硬纤维（=绳），用于制作绳索、覆盖地板等。 Word Originlate 16th cent.: from Malayalam kayar̲u ‘cord, coir’.