Main Entry:

ad·he·sion

Pronunciation:

\ad-ˈhē-zhən, əd-\

Function:

noun

Etymology:

French or Latin; French adhésion, from Latin adhaesion-, adhaesio, from adhaerēre

Date:

1624

1: steady or firm attachment : adherence2: the action or state of adhering3: the abnormal union of separate tissue surfaces by new fibrous tissue resulting from an inflammatory process ; also : the newly formed uniting tissue4: agreement to join <adhesion of all nations to a copyright convention>5: the molecular attraction exerted between the surfaces of bodies in contact

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