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Meaning of tetrastichous

te•tras•ti•chous

Pronunciation: (ti-tras'ti-kus), [key]
— adj. Bot.
  1. arranged in a spike of four vertical rows, as flowers.
  2. having four such rows of flowers, as a spike.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.