D defs.my
Entry 8 senses · 3 variants Webster, 1913

Knuckle

/nŭkˈ-əl/ · Knuc·kle · IPA /ˈnʌkəl/
01 n. The joint of a finger, particularly when made prominent by the closing of the fingers.
  1. 1.
    The joint of a finger, particularly when made prominent by the closing of the fingers.
  2. 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. 3.
    The joint of a plant.[Obs.]
  4. 4.
    The joining parts of a hinge through which the pin or rivet passes; a knuckle joint.(Mech.)
  5. 5.
    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.(Shipbuilding)
  6. 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.] Also: knuckle duster, knuckles, brass knuckles
Phrases & compounds
Knuckle joint — 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 — the lower part of a leg of veal, from the line of the body to the knuckle.
02 v. i. To yield; to submit; -- used with down, to, or under.
imp. & p. p. Knuckled; p. pr. & vb. n. Knuckling
  1. 1.
    To yield; to submit; -- used with down, to, or under.
Phrases & compounds
To knuckle to — To submit to in a contest; to yield to.
03 v. t. To beat with the knuckles; to pummel.
  1. 1.
    To beat with the knuckles; to pummel.[R.]