The Collaborative International Dictionary
Abscession
Abscession \Ab*sces"sion\, n. [L. abscessio a separation; fr.
absedere. See Abscess.]
A separating; removal; also, an abscess. [Obs.]
--Gauden.
Barrough.
Wiktionary
abscession
n. 1 A separating; removal. 2 An abscess.