from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Occurring or issued twice a year.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Occurring twice a year; half-yearly; biannual.
from the GNU version of the Collaborative International Dictionary of English
- adj. Half-yearly.
from The Century Dictionary and Cyclopedia
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. occurring or payable twice each year
semi- half + Latin annus year + -al (Wiktionary)