noun. the releasing of urine from the bladder, that is impacted by deliberate relaxation of the sphincter at the junction of the urethra and bladder and reflexive contracting of the bladder wall.

URINATION: "Urination is less commonly known as micturition."
Cite this page: N., Pam M.S., "URINATION," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/urination/ (accessed September 27, 2021).