consensual

adjective4

1. •
   With permission, with consensus, without coercion; allowed without objecting or resisting.
2. •
   Existing, or made, by the mutual consent of two or more parties.
3. •
   Excited or caused by sensation, sympathy, or reflex action, and not by conscious volition.

   • consensual motions
4. •
   Contralaterally corresponding rather than ipsilaterally induced.

   • direct and consensual pupillary reflexes produce bilateral constriction from a unilateral stimulus