Liquid waste consisting of water, salts, and urea, which is made in the kidneys, stored in the bladder, then released through the urethra.
An artificial kidney these days still means a refrigerator-sized dialysis machine. Such devices mimic the way real kidneys cleanse blood and eject impurities and surplus water as urine.
From Middle English uryne, from Latin ūrīna (“urine”), from Proto-Indo-European *uh₁r-, zero grade of *woh₁-r̥ (“water, liquid, milk”). Related to *h₁ówHdʰr̥ (“udder”) (see udder). Cognate with Old En...
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