the.com/urine
Blood's rough draft after the kidneys finish editing out the useful parts.
means The liquid waste filtered out of your blood by the kidneys and expelled from the body, mostly water carrying urea, salts, and other leftovers your cells didn't want.
from From Latin urina, which traces back to an ancient root shared with Greek ouron — both pointing to Proto-Indo-European roots meaning roughly 'to flow' or 'water.' English picked it up through French in the medieval period, slotting in beside the older, blunter native word 'piss' (itself from Latin pissiare, possibly imitative of the sound). So 'urine' has always been the polite Latinate cousin standing next to its earthier relative.
- actual color source
- a pigment called urobilin, blood breakdown leftover
- sterility myth
- not sterile, contains bacteria even when healthy
- historical use
- ancient launderers used it to whiten togas
- composition reality
- ninety-five percent water, five percent waste chemistry