The Collaborative International Dictionary of English v.0.48:

Right-handed \Right"-hand`ed\, a.
   1. Using the right hand habitually, or more easily than the
      left.
      [1913 Webster]

   2. Having the same direction or course as the movement of the
      hands of a watch seen in front; -- said of the motion of a
      revolving object looked at from a given direction.
      [1913 Webster]

   3. (Zool.) Having the whorls rising from left to right;
      dextral; -- said of spiral shells. See Illust. of
      Scalaria.
      [1913 Webster]

   Right-handed screw, a screw, the threads of which, like
      those of a common wood screw, wind spirally in such a
      direction that the screw advances away from the observer
      when turned with a right-handed movement in a fixed nut.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

clockwise \clock"wise`\, a. & adv.
   in the same direction as the hands of a clock rotate, as
   viewed from in front of the clock face; -- said of that
   direction of a rotation about an axis, or about a point in a
   plane, which is ordinarily reckoned negative. Also said of
   the direction of a spiral, in which case the term
   right-handed is more common. Opposite of
   counterclockwise, and left-handed.

   Syn: right-handed, dextrorotary, dextrorotatory.
        [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

right-handed
    adj 1: using or intended for the right hand; "a right-handed
           batter"; "right-handed scissors" [ant: ambidextrous,
           left-handed, two-handed]
    2: rotating to the right [syn: dextrorotary, dextrorotatory,
       right-handed]