What are compounds with the same mass called? It may be that the answer is just "no" and that's why I can't find it, but is there any common name for compounds with the same mass?

I'm thinking in the context of mass spectrometry where these compounds require additional steps to resolve.

Isomers are the obvious example, but I was wondering if there was a more general term.
In mass spectrometry, ions with the same nominal mass (but possibly differing exact masses) are called isobaric.