When a person or animal excretes waste matter from their body, they get rid of it in faeces, urine, or sweat. Your open pores excrete sweat and dirt + excretion excretions ex·cre·tion the excretion of this drug from the body. to get rid of waste material from your body through your bowels, your skin etc secrete (excretus, past participle of excernere , from cernere )
[ ik-'skrEt ] (transitive verb.) 1620. Latin excretus, past participle of excernere to sift out, discharge, from ex- + cernere to sift; more at CERTAIN.