preponderance

Short definition from Wiktionary

Noun

1. 1
   Superiority in amount or number; the bulk or majority; also, a large amount or number; an abundance, a profusion.
2. 2
   Superiority of influence, power, a quality, etc.; an outweighing, predominance, pre-eminence.
3. 3
   Greater physical weight.
4. 4
   Greater physical weight: The excess of weight of that part of a cannon behind the trunnions over that in front of them.