definition of linkage
Full Definition of LINKAGE. 1. : the manner or style of being united: as a: the manner in which atoms or radicals are linked in a molecule b: bond 3c. 2. : the quality or state of being linked; especially: the relationship between genes on the same chromosome that causes them to be inherited together â compare mendel's law 2.. : a system of links; especially: a system of links or bars which are jointed together and more or less constrained by having a link or links fixed and by means of which straight or nearly straight lines or other point paths may be traced. 4.