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bimester

American  
[bahy-mes-ter, bahy-mes-] / baɪˈmɛs tər, ˈbaɪ mɛs- /

noun

  1. a two-month period.


Etymology

Origin of bimester

< Latin bimē ( n ) stris of a bimester, equivalent to bi- bi- 1 + ( n ) s- (stem of mēnsis ) month + -tris adj. suffix