Webster's English Dictionary

Enter the word to look up:

rotation

ro.ta.tion \ro-'ta--sh*n\ \-shn*l, -sh*n-*l\ n 1a: the act of rotating on 
   or as if on an axis  1b: one complete turn : the angular displacement 
   required to return a rot ating body or figure to its original orientation 
   2: return or succession in a series (as of different crops in succession on 
    one field) 3: the turning of a body part about its long axis as if on a 
   pivot  - ro.ta.tion.al aj