Definition of "linker"

That which links.  examples

(software compilation) A computer program that takes one or more objects generated by compilers and assembles them into a single executable program.  examples

(genetics) A short oligonucleotide containing a recognition sequence for a restriction enzyme, used to blunt the ends of sticky DNA segments.  examples

(grammar) A word or short expression that links clauses or other syntactic elements.  examples

(finance, informal) A linked bond, one for which the principal is indexed to inflation.  examples

(genetics) To ligate a DNA segment using a linker.  quotations  examples