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Definition of: hyponasty
(hip′ə·nas′tē, hī′pə-) noun Bot.
A state of curvature induced in an extending plant organ by the excessively active growth of its lower side, causing it to bend downward. Compare EPINASTY. [<HYPO- + Gk. nastos compact]
—hyp′o·nas′tic adjective
—hyp′o·nas′ti·cal·ly adverb
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