Irrotational

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Irrotational \Ir`ro*ta"tion*al\, a. (Physics)
     Not rotatory; passing from one point to another by a movement
     other than rotation; -- said of the movement of parts of a
     liquid or yielding mass. --Sir W. Thomson.
     [1913 Webster]