epinasty


epi·nas·ty

noun \ˈe-pə-ˌnas-tē\

Definition of EPINASTY

:  a nastic movement in which a plant part (as a flower petal) is bent outward and often downward

Origin of EPINASTY

International Scientific Vocabulary epi- + Greek nastos close-pressed (from nassein to press) + International Scientific Vocabulary 2-y
First Known Use: 1880

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