noun mark·er \ˈmär-kər\

: something (such as a sign or an object) that shows the location of something

: something that shows the presence or existence of something

: a type of pen that makes wide lines

Full Definition of MARKER

:  one that marks
:  something used for marking
:  score 7; specifically :  run
:  something that serves to identify, predict, or characterize: as
a :  biomarker
b :  genetic marker

Examples of MARKER

  1. A person's accent can be a marker of social class.
  2. <the markers on the rock and mineral specimens were old and faded>

First Known Use of MARKER

15th century

Rhymes with MARKER

Medical Dictionary


noun mark·er \ˈmär-kər\

Medical Definition of MARKER

:  something that serves to identify, predict, or characterize <a surface marker on a cell that acts as an antigen>: as a :  biomarker b :  genetic marker—called also marker gene
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