Noun excretion has 2 senses
  1. elimination, evacuation, excretion, excreting, voiding - the bodily process of discharging waste matter
    --1 is a kind of discharge, emission, expelling
    --1 has particulars:
     defecation, laxation, shitting; incontinence, incontinency; micturition, urination
    Derived form: verb excrete1
  2. body waste, excretion, excreta, excrement, excretory product - waste matter (as urine or sweat but especially feces) discharged from the body
    --2 is a kind of waste, waste material, waste matter, waste product
    --2 has particulars:
     fecal matter, faecal matter, feces, faeces, BM, stool, ordure, dejection; fecula; wormcast; human waste; urine, piss, pee, piddle, weewee, water; vomit, vomitus, puke; guano
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