[1] : The Collaborative International Dictionary of English v.0.48

valvate \valv"ate\, a. l. valvatus having folding doors.
   1913 webster
   1. resembling, or serving as, a valve; consisting of, or
      opening by, a valve or valves; valvular.
      1913 webster

   2. bot.
      a meeting at the edges without overlapping; -- said of
          the sepals or the petals of flowers in aestivation,
          and of leaves in vernation.
      b opening as if by doors or valves, as most kinds of
          capsules and some anthers.
          1913 webster

Valvate >> V Words
Valvate, definition of term: Valvate
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