paratonic

adjective3

1. •
   Relating to paratonia.

   • A primary symptom in Parkinsonism, but also manifest at higher levels, as gegenhalten (paratonic rigidity), catatonic rigidity, hysterical rigidity, and neurotic rigidities and obstinacies. — 1973
2. •
   Relating to paratones.
3. •
   Retarding a plant's growth.