from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An announcement in court that something is cancelled or set aside; an annulment.
from the GNU version of the Collaborative International Dictionary of English
- n. An order of court by which a proceeding is set aside or annulled.
from The Century Dictionary and Cyclopedia
- n. In law, the act of annulling or setting aside.
Latin, third person singular present indicative passive of vacare, "it is made null and void" (Wiktionary)