It is barely discernible in this wonderful picture, yet in it you find the focus of the whole piece.

The only clue to her surgery is a barely discernible scar on her mouth.

At the other extreme is something barely discernible from what we have now.

The trail becomes more precipitous as we plod steadily across a long ridge that is barely discernible from the fog folding around us.

And there was a barely discernible" trace sclerosis" of the myelin sheath, the insulating tissue that covers the nerve fibers.