Dictionary
marker
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
1
: one that marks
2
: something used for marking
4
5
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First Known Use of MARKER
15th century
Medical Dictionary
marker
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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