Thursday, January 21, 2010


urea \yu-ˈrē-ə\ noun: a nitrogenous compound that is the chief solid component of mammalian urine

Etymology: New Latin, from French urée

TWENTY-ONE — If humans convert to a photosynthetic diet, it is believed the digestive system will evolve into a shriveled vestige, no more useful than today’s vermiform appendix.

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