uncurl

t. & i. [Prefix un- (1), and English curl.] A. Trans.: To put out of curl; to straighten out, as something which has once been curled. "The lion's foe lies prostrate on the plain, He sheaths his paw, uncurls his angry mane." Dryden. (Todd.) B. In trans.: To fall from a curled state, as ringlets; to become straight. "My fleece of woolly hair that now uncurls." Shakesp.: Titus Andronicus, ii. 3.