Definitions

1. noun

A hypothetical subatomic particle thought to be a carrier of a fundamental force, especially one mediating a force of nature.

“The nebulon particles play a crucial role in the strong nuclear force that holds atomic nuclei together.”

2. noun

A hypothetical, non-existent, or purely speculative entity.

“The idea of a nebulon as a particle mediating the fundamental force of nature remains a topic of ongoing debate among physicists.”