biological marker

British  

noun

1. Also called: biomarker.  a substance, physiological characteristic, gene, etc that indicates, or may indicate, the presence of disease, a physiological abnormality or a psychological condition

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Example Sentences

Next, the researchers, including postdoctoral fellows Devi Kasinathan and Zheng Guo, looked more closely at the mice that received mAb43 and used a biological marker called Ki67 to see if beta cells were multiplying in the pancreas.

From Science Daily

The presence of glutamate as a biological marker might shed light on why patients struggle with exhaustion.

From Scientific American

“If you had a medical test or biological marker like this, it might facilitate parents not going into denial for longer periods and therefore the child would get treatment more quickly.”

From Reuters

What makes disability advocates nervous about the system’s treatment of long-haulers is their experience with its approach to chronic fatigue syndrome, for which there is no lab test or biological marker.

From Los Angeles Times

Like ME/CFS, post-Lyme syndrome has no biological marker that allows for concrete diagnosis.

From New York Times