knuck·le /ˈnʌkəl/
 指節,蹄爪,膝關節(vt.)(vi.)以指節打,以手指射


 knuck·le /ˈnəkəl/ 名詞
 指節,膨出部,(機械)鉤爪


 Knuc·kle, v. i. [imp. & p. p. Knuckled ; p. pr. & vb. n. Knuckling ] To yield; to submit; -- used with down, to, or under.
 To knuckle to. (a) To submit to in a contest; to yield to. [Colloq.] See To knock under, under Knock, v. i.  (b) To apply one's self vigorously or earnestly to; as, to knuckle to work. [Colloq.]


 Knuc·kle, v. t. To beat with the knuckles; to pummel. [R.]

 ◄ ►


 Knuc·kle n.
 1. The joint of a finger, particularly when made prominent by the closing of the fingers.
 2. The kneejoint, or middle joint, of either leg of a quadruped, especially of a calf; -- formerly used of the kneejoint of a human being.
    With weary knuckles on thy brim she kneeled sadly down.   --Golding.
 3. The joint of a plant. [Obs.]
 4. Mech. The joining parts of a hinge through which the pin or rivet passes; a knuckle joint.
 5. Shipbuilding A convex portion of a vessel's figure where a sudden change of shape occurs, as in a canal boat, where a nearly vertical side joins a nearly flat bottom.
 6. A contrivance, usually of brass or iron, and furnished with points, worn to protect the hand, to add force to a blow, and to disfigure the person struck;  -- called also knuckle duster, knuckles or brass knuckles. [Slang.]
 Knuckle joint Mach., a hinge joint, in which a projection with an eye, on one piece, enters a jaw between two corresponding projections with eyes, on another piece, and is retained by a pin which passes through the eyes and forms the pivot.
 Knuckle of veal Cookery, the lower part of a leg of veal, from the line of the body to the knuckle.


 knuckle
      n : a joint of a finger when the fist is closed [syn: {knuckle
          joint, metacarpophalangeal joint]
      v 1: press or rub with the knuckles
      2: shoot a marble while keeping one's knuckles on the ground