ENDOPARAZITHO parazithoi daruni, organizmhoi parazitro guyand, ki dar dokhili uzvhoi hayvonotu rastani va hujayrahoi judogonai onho (parazithoi dokhilihujayravi) zindagi mekunand. E. dar bayni zanburugho, bakteriyaho, inchunin aksar navu sinfhoi hayvonot (ba istinoi khorpustho, kitfpoyho va khordadorho) vomekhurand.