Convergence
Pronunciation : Con*ver"gence, Con*ver"gen*cy
Part of Speech : n.
Etymology : [Cf. F. convergence.]
Definition : Defn: The condition or quality of converging; tendency to one point. The convergence or divergence of the rays falling on the pupil. Berkeley.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder