BIANNUAI
\ba͡ɪˈanjuːˌa͡ɪ], \baɪˈanjuːˌaɪ], \b_aɪ__ˈa_n_j_uː_ˌaɪ]\
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Occurring twice a year; semiannual.
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Biannuaily.
By James Champlin Fernald