biological marker

British

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Scientific American • Aug. 11, 2022

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 • Mar. 8, 2021

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

From New York Times • Jan. 21, 2021

There’s no blood test or other biological marker to determine the presence of anxiety, depression, PTS or other related conditions.

From Salon • Jul. 20, 2019

“This is the first ageing study Nasa has done on the astronauts, so it will be the first time a biological marker of ageing has been is assessed in the context of spaceflight.”

From The Guardian • Oct. 28, 2015

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023