BIOLOGICAL MARKER By N., Pam M.S. - April 7, 2013 n. a biological variable which accompanies a condition or disease, regardless of whether or not it directly or indirectly causes the disorder. See biochemical marker- also clinical marker. BIOLOGICAL MARKER: "A variable such as hemoglobin in red blood cells or myoglobin in muscle fibers can serve as a biological marker." Related Psychology Terms BIOCHEMICAL MARKER BIOLOGICAL MARKER BIOCHEMICAL MARKER CATALYTIC VARIABLE MANIFEST VARIABLE LINEAR REGRESSION BIOSOCIAL DEVELOPMENTAL THEORY BIOLOGICAL FACTOR STRUCTURED CLINICAL INTERVIEW FOR DSM-IV AXIS PERSONALITY DISORDERS (SCID-LL) MOTOR SYSTEM Cite this page: N., Pam M.S., "BIOLOGICAL MARKER," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/biological-marker/ (accessed February 19, 2020).