Comparator

1 definition found

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

  Comparator \Com"pa*ra`tor\ (? or ?), n. [L., a comparer.]
     (Physics)
     An instrument or machine for comparing anything to be
     measured with a standard measure; -- applied especially to a
     machine for comparing standards of length.
     [1913 Webster]