Webster's Revised Unabridged Dictionary · 1913

Regurgitation

Regurgitation (-t?"sh?n) , noun

[Compare French régurgitation.]

1.
(Medicine) The act of flowing or pouring back by the orifice of entrance
(Medicine) the reversal of the natural direction in which the current or contents flow through a tube or cavity of the body. — Quain
2.
The act of swallowing again; reabsorption.