It's a very vague term.

There has been, for instance, plenty of loose talk about renegotiation, yet little about what that vague term really means.

However, how enzymes affect the flux through a metabolic pathway was still discussed using the rather vague term rate-limiting step.

Although he agrees that there are two different types of producers, it's still a vague term.

He kept his trophies locked away in a cupboard and spoke in vague terms of filling a wall with them one day.