Main Entry: Ei·me·ria

Pronunciation: \ī-ˈmir-ē-ə\

Function: noun

: a genus of coccidian protozoans that invade the visceral epithelia and especially the intestinal wall of many vertebrates and some invertebrates and that include serious pathogens

—ei·me·ri·an \-ē-ən\ adjective or noun

Ei·mer \ˈī-mər\ , Theodor Gustav Heinrich (1843–1898), German zoologist. Eimer is known largely for his opposition to the Darwinian theory of natural selection. He held that variation in organisms occurred not by chance but according to the mechanism of orthogenesis.