1. any reflex involving a substantial delay between muscle contracting and relaxing. 2. any reflex which allows a muscle or group of muscles to keep up a specific degree of tension, or tonus.

TONIC REFLEX: "The patient's tonic reflexes have been inhibited, but functioning should improve when she is weaned off of the medication."
Cite this page: N., Pam M.S., "TONIC REFLEX," in, April 29, 2013, (accessed August 4, 2021).