What they had was the advantage of small mass and initiative.

It is the smallest mass and energy the system may be seen to have, by any observer.

One advantage of smaller mass was a faster response to changed circumstances.

This is a very small mass, which we obviously can't weigh on a scale.

They usually move fast because they have such a small mass.

Their main distinction is that they are the stars of smallest mass known to man.

The onions should be a deep brown and reduced to a small mass.

The second factor, if large enough, could offset a small mass.

It's still a small mass next to the spacecraft's total size.

It was also used to measure medicine and other very small masses.