Bimesters is a 9 letter English word. It's valid Scrabble word worth 12 points. It's valid Words with friends word worth 14 points.
You can make 405 anagrams from letters in bimesters (beeimrsst).
Latin bimē(n)stris of a bimester, equivalent to bi- bi-1 + mē(n)s- (stem of mēnsis) month + -tris adj. suffix
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14