Liquid waste consisting of water, salts and urea, which is made in the kidneys, stored in the bladder, then released through the urethra.
"The doctor collected a sample of urine to test its composition after it was produced by the kidneys and passed from the bladder."
In plain English: Urine is liquid waste that your body removes from your blood through your kidneys and bladder.
"He had to run outside quickly because he needed to use the bathroom and his bladder was full."
Usage: Use this clinical term to refer specifically to liquid bodily waste rather than casual synonyms like pee or piddle. It functions as a countable noun when discussing specific instances of excretion but often appears uncountably in medical descriptions of composition and volume.
To urinate.
"He held his breath to try and hold in his urine until he reached the bathroom."
The word "urine" entered English through the French language as uryne, which was borrowed directly from Latin for urine. It ultimately traces its roots to an ancient Indo-European root meaning water or liquid, replacing an earlier native Old English term that had fallen out of common use.