the.com/urine
Your kidneys' liquid resignation letter, filed several times a day.
means The yellowish fluid your kidneys produce to flush water-soluble waste and surplus water out of your body.
from From Latin urina, traced back to a Proto-Indo-European root meaning water or moisture, the same family that floats other watery words.
Color clueYellow comes from urobilin, a blood-breakdown byproduct.
Mostly waterRoughly 95 percent water, rest is dissolved waste.
Old usesRomans used aged urine to whiten teeth.
Sterile mythFresh urine is not actually sterile inside.