Bŭck'le1, n.
(bŭk'l), n. [Fr. boucle, buckle, ring, O. Fr. bocle, boucle, bloque, boss, Pr. bocla, bloca, O. Sp. bloca, from Lat. buccula, a little cheek or mouth, dim. of bucca, cheek, because this boss or knob resembled a cheek.]
Sense 1. An instrument, usually of metal, consisting of a rim with a movable tongue or catch, used for fastening things together, as parts of dress or harness, by means of a strap passing through the rim, and pierced by the tongue.
Sense 2. A curl, or a state of being curled or crisped, as hair.
Earlocks in tight buckles on each side of a lantern face. W. Irving.
Sense 3. A contorted expression, as of the face.
’Gainst nature armed by gravity, His features too in buckle see. Churchill.