biquarterly

[bahy-kwawr-ter-lee]

adjective

occurring twice in each quarter of a year.

Origin of biquarterly

First recorded in 1880–85; bi-1 + quarterly
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British Dictionary definitions for biquarterly

biquarterly

adjective

occurring twice every three months
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012