To accomplish evacuation. [L. e-vacuo, pp. -vacuatus, to empty out]
* * *
1) to remove the contents of <\evacuate an abscess>
2) to discharge (as urine or feces) from the body as waste: VOID vi to pass urine or feces from the body
evac·u·a·tive -.wāt-iv adj
Medical dictionary. 2011.