Akademik

urination
The passing of urine. SYN: miction, micturition (1), uresis.
- stuttering u. the passage of urine in jets caused by intermittent spasmodic contraction of the bladder.

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uri·na·tion .yu̇r-ə-'nā-shən n the act of urinating called also micturition

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n.
the periodic discharge of urine from the bladder through the urethra. It is initiated by voluntary relaxation of the sphincter muscle below the bladder and maintained by reflex contraction of the muscles of the bladder wall.

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uri·na·tion (u″rĭ-naґshən) the discharge or passage of urine. Called also micturition and uresis.

Medical dictionary. 2011.