Medical Definition of adhesion
1: the action or state of adhering; specifically : a sticking together of substances (as of glue and wood or of parts united by growth)
2a: 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
Seen and Heard
What made you want to look up adhesion? Please tell us where you read or heard it (including the quote, if possible).