rest mass

1. 1.

   (physics) the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body

   Broadermass

   physics

Questions about rest mass

What does rest mass mean?

rest mass means "(physics) the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body".

Is rest mass a common word?

rest mass is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.