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semiannual: Meaning and Definition of

sem•i•an•nu•al

Pronunciation: (sem"ē-an'y-ul, sem"ī-), [key]
— adj.
  1. occurring, done, or published every half year or twice a year; semiyearly.
  2. lasting for half a year: a semiannual plant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
semiamateur semiaquatic
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