definition of
adherence

[1] #1 adherence n. [attachment, adhesion] faithful support for a cause or political party or religion; "attachment to a formal agenda"; "adherence to a fat-free diet"; "the adhesion of Seville was decisive". wn

[2] #2 adherence n. [adhesiveness, adhesion, bond] the property of sticking together (as of glue and wood) or the joining of surfaces of different composition; "the mutual adhesiveness of cells"; "a heated hydraulic press was required for adhesion". wn