Will deliberately stumbled, and the man with the microscopic trace of decency came beside him to help him to the metal box.

I don't even want there to be microscopic traces of that damned Forehead swill on my world, is that understood?

Not merely microscopic traces, but clumps too small to see at all.

"Right here on the actual edge we've got microscopic traces of talcum dust."

Only microscopic traces of them tainted the cotton fabric of his clothes.

Fecal occult blood is a quick test which can be done to test for microscopic traces of blood in the stool.

But the urine test showed microscopic traces of blood.

There might even be a few microscopic traces of photo paper on the blade.

The oldest fossil-bearing rocks bear the microscopic traces of single cells.

My men found some microscopic traces of the bottle and some tiny fragments of wood when they went through the place.