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1. Happening every two years. See Usage Note at bi-1.
2. Happening twice a year; semiyearly.
1. Every two years.
2. Twice a year; semiyearly.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


adj, adv
1. every two years; biennial or biennially
2. (often avoided because of confusion with sense 1) twice a year; biannual or biannually. See bi-1
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(baɪˈyɪər li)

1. happening every two years; biennial.
2. happening twice a year; biannual.
3. every two years.
4. twice yearly.
usage: See bi- 1.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.biyearly - occurring every second year; "they met at biennial conventions"
periodic, periodical - happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"
2.biyearly - occurring or payable twice each year
periodic, periodical - happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"
Adv.1.biyearly - every two years; "this festival takes places biennially"
2.biyearly - twice a year
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
"We also carry out biyearly inspections on all managed properties.
Researchers enrolled 1,430 participants from the Quebec Longitudinal Study of Child Development, aged 6-12 years, and performed yearly or biyearly assessments over a follow-up of 5 months to 17 years, according to a study published online in JAMA Psychiatry (doi: 10.100l/jamapsychiatry.2018.0174).
Then the morning after the board meeting, the news came in that SIC was once again ranked by the Aspen Institute as one of the top 10 percent community colleges in the US, and eligible for the biyearly monetary award.
state of incorporation dummy, biyearly time dummies, and other
The OJ's crew headed back down to mainland Mexico for our biyearly tequila/shrimp quesadilla fest that we lovingly refer to as "a skate trip." A fair amount of heavy shredding went down in a short period of time in Guadalajara, Leon and Punta Mita.
In 2012, EVA commenced a schedule of alternating years and rebranded itself with the subtitle "Ireland's Biennial." This most recent iteration, EVA's third as a biyearly event, was curated by Koyo Kouoh, the Basel- and Dakar-based founding director of Raw Material Company, an arts initiative that bills itself as a resource center, gallery, and residency program supporting artistic production in Africa.
Thus, identifying girls with considerably higher risk of developing breast cancer within the close to term is very important to work out United Nations agency should be screened annually or biyearly within the close to term [2].
Fashion Week is an ever-looming, biyearly event that forces creativity and innovation.
On the other hand, patients that need biyearly check-ups, cannot schedule their appointment after the consultation, because the scheduling horizon is only 4 months.
The biyearly festival will be marking its 19th program from May 9 to June 5 with more than 100 performances by seven foreign and 35 local theater, dance and performance companies in various venues across ystanbul, the ystanbul Foundation for Culture and Arts (yKSV) announced on Monday evening during a press meeting at ystanbul's Rahmi M.
Now in its third edition, the city's home-grown animation film festival is a biyearly, noncompetitive event that seeks to promote interesting animation in Lebanon.