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paratonic

/ ˌpærəˈtɒnɪk /

adjective

  1. botany (of a plant movement) occurring in response to an external stimulus
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Example Sentences

The change in torsion is, moreover, determined in reference to the paratonic action of incident geotropic stimulus.

I find that this autonomous movement becomes modified or even arrested by the paratonic effect of light.

I have already referred to the distinction that is made between nastic and paratonic movements.

They are mostly reflex or paratonic, and due to external stimuli.

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para-toluidineparatransit