There is no blood test for the disorder, no obvious physical marker.

We have no way of knowing whether any physical marker once stood there.

When I started getting them ten years ago, it came from a need to have rites of passage that included spiritual reminders and physical markers.

Although cigarettes actually increase physical markers of stress, smokers tend to feel more relaxed after lighting up.

Possible to analyze subsets of cells using physical and immunofluorescent markers.

You've found the physical marker for this one.

Balancer chromosomes also come with some sort of physical marker.

A taggant is also a chemical or physical marker added to materials to allow various forms of testing.

Obesity is a physical marker of poor health, increasing the likelihood of various diseases.

It is calculated from a number of physical and biochemical markers.