Excreta :: Excreta (n. pl.) Matters to be excreted.
Excrete :: Excrete (v. t.) To separate and throw off; to excrete urine.
Excretin :: Excretin (n.) A nonnitrogenous, crystalline body, present in small quantity in human faeces..
Excretion :: Excretion (n.) That which is excreted; excrement.
Excretive :: Excretive (a.) Having the power of excreting, or promoting excretion..
Excretory :: Excretory (a.) Having the quality of excreting, or throwing off excrementitious matter..