pre ‧ pon ‧ de ‧ rance /prɪˈpɒnd ə rəns $ -ˈpɑːn-/ BrE AmE noun formal
1 . a preponderance of something if there is a preponderance of people or things of a particular type in a group, there are more of that type than of any other:
There is a preponderance of female students in the music department.
2 . a preponderance of the evidence law most of the ↑ evidence in a law case