D defs.my
Entry 1 sense Webster, 1913

graviton

· IPA /ˈɡɹavɪtɒn/
01 n. A theoretical gauge boson that mediates the (extremely weak) gravitational interactions between particles; the quantum of the gravitational…
  1. 1.
    A theoretical gauge boson that mediates the (extremely weak) gravitational interactions between particles; the quantum of the gravitational field, having zero rest mass and a spin of 2.(Physics)