verb (used with object), ex·cret·ed, ex·cret·ing.

  1. to separate and eliminate from an organic body; separate and expel from the blood or tissues, as waste or harmful matter.


  1. to discharge (waste matter, such as urine, sweat, carbon dioxide, or faeces) from the body through the kidneys, skin, lungs, bowels, etc
  2. (of plants) to eliminate (waste matter, such as carbon dioxide and salts) through the leaves, roots, etc

1610s, from Latin excretus, past participle of excernere (see excrement). Related: Excreted; excreting.


  1. To eliminate waste material from the body.

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