Having the back hollow or sagged, whether naturally or
as the result of injury or weakness; -- said of horses and other
animals.
1. To make strait; to make narrow; hence, to contract; to confine. Waters, when straitened, as at the falls of bridges, give a roaring noise. Bacon. In narrow circuit, straitened by a foe. Milton. 2. To make tense, or tight; to tighten. They straiten at each ...