marker

[ mahr-ker ]
/ ˈmɑr kər /

noun

Origin of marker

First recorded in 1480–90; mark1 + -er1

Example sentences from the Web for marker

British Dictionary definitions for marker

marker
/ (ˈmɑːkə) /

noun

  1. something used for distinguishing or marking
  2. (as modifier)a marker buoy
a person or thing that marks
a person or object that keeps or shows scores in a game
a trait, condition, gene, or substance that indicates the presence of, or a probable increased predisposition to, a medical or psychological disorder See biological marker, genetic marker, medical marker

Medical definitions for marker

marker
[ märkər ]

n.

One that marks or serves as a mark.
A physiological substance, such as human chorionic gonadotropin or alpha-fetoprotein, that may indicate disease when present in abnormal amounts in the serum, as that caused by a malignancy. biomarker
A genetic marker.