paratonic

Related to paratonic: paratonic rigidity

paratonic

(ˌpærəˈtɒnɪk)
adj
(Botany) botany (of a plant movement) occurring in response to an external stimulus
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References in periodicals archive ?
The presence or absence of gegenhalten (paratonic rigidity) was noted during irregular passive extension and flexion of the elbow and wrist joints.