Twice a week; semiweekly. See Usage Note at bi-1.(adverb)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "biweekly" in a sentence
"The fellow participates in biweekly case conferences of children seen at the PCA."
"For the 2010-2011 year, fellows will receive a stipend of $37,368 (consistent with NIH guidelines), distributed evenly across the year in biweekly checks."
"I’ve been participating in biweekly Calagator code sprints (we’re hoping to have our 1.0 release in just a couple weeks)."