Retrocession
Pronunciation : Re`tro*ces"sion
Part of Speech : n.
Etymology : [Cf. F. r?trocession. See Retrocede.]
Definition : 1. The act of retroceding.
2. The state of being retroceded, or granted back.
3. (Med.)
Defn: Metastasis of an eruption or a tumor from the surface to the interior of the body.
Source : Webster's Unabridged Dictionary, 1913