biennially

from WordNet (r) 3.0 (2006)
biennially
    adv 1: every two years; "this festival takes places biennially"
           [syn: {biennially}, {biyearly}]
from The Collaborative International Dictionary of English v.0.48
Biennially \Bi*en"ni*al*ly\, adv.
   Once in two years.
   [1913 Webster]
antiflux / dictionary / biennially
[email protected]