excretionaryadj.

/ɛkˈskriːʃənəri/Etymology: < excretion n.1 + -ary suffix1.
the world > life > the body > organs of excretion > [adjective] > action of excreting
1872 T. H. Huxley (ed. 6) i. 16 These excretionary matters are separated from the blood by the excretory organs.
This entry has not yet been fully updated (first published 1894; most recently modified version published online March 2018).