Main Entry: ad·he·sion

Pronunciation: \ad-ˈhē-zhən, əd-\

Function: noun

1 : the action or state of adhering ; specifically : a sticking together of substances (as of glue and wood or of parts united by growth)
2 a : the abnormal union of surfaces normally separate by the formation of new fibrous tissue resulting from an inflammatory process ; also : the newly formed uniting tissue <pleural adhesions> b : the union of wound edges especially by first intention
3 : the molecular attraction exerted between the surfaces of bodies in contact—compare cohesion 2

—ad·he·sion·al \-ˈhēzh-nəl, -ˈhē-zhən-^əl\ adjective