bi·o·nom·ics 
(bī′ə-nŏmĭks)
(bī′ə-nŏmĭks)n. (used with a sing. verb)
The science of ecology.
[From French bionomique, pertaining to ecology, from bionomie, ecology : Greek bio-, bio- + Greek -nomiā, -nomy.]
bi′o·nomic, bi′o·nomi·cal adj.
bi′o·nomi·cal·ly adv.