Biyearly
biennial (defs 1, 2).
biennially; biannually.
twice yearly.
adjective, adverb
every two years; biennial or biennially
(often avoided because of confusion with sense 1) twice a year; biannual or biannually see bi-1
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sodium bicarbonate. noun sodium bicarbonate, esp when used as a medicine or as a raising agent in baking bicarbonate of soda see sodium bicarbonate.
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