Right-hand·ed, a.
 1. Using the right hand habitually, or more easily than the left.
 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.
 3. Zool. Having the whorls rising from left to right; dextral; -- said of spiral shells. See Illust. of Scalaria.
 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.

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