whip·cord /ˈhwɪpˌkɔrd, ˈwɪp-/
  鞭繩;一種起詣織品
  Whip·cord n. A kind of hard-twisted or braided cord, sometimes used for making whiplashes.
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  whipcord
       n 1: closely twisted hard cord used for the lashes of whips
       2: a strong worsted or cotton fabric with a diagonal rib