靭じん皮ぴじんぴMeanings1nounbastbotany›Botanical term for the fibrous material from the inner bark of certain plants, used in textiles and cordage.靭じん皮ぴは繊せん維いが強つよく、縄なわや布ぬのに加か工こうされる。Bast has strong fibers and is processed into rope and cloth.