arched

adj

1. Curved.

   “His arched back ached from the constant strain.”

   “The lobule margins, furthermore, are arched away from the lobe, with the consequence that (when fully inflated) the abaxial leaf surface forms the interior lining of the lobule.”

verb

1. (form-of, participle, past)simple past and past participle of arch

   “He arched his back into a half-moon curve trying to get the stiffness out.”