排尿

1. Origins, structure, and basic meaning

• Structure: 排尿 (はいにょう) is a noun that also forms a する verb for urination, the discharge of urine from the body.
• Basic usage: It appears when learning how urination works or recording its frequency on a medical form.
  • 保健の授業で排尿の仕組みを学んだ。 — In health class, we learned how urination works.
  • 診察表に排尿の回数を記録する欄があった。 — The medical form had a field for recording urinary frequency.

2. Common pitfalls and similar expressions

• Process and frequency
  • 排尿 names the act or process, while 排尿の回数 specifically counts how often it occurs.