ˌästə(r)ˈtājēə noun
Usage: capitalized
Etymology: New Latin, from Robert von Ostertag died 1940 German veterinarian and parasitologist + New Latin -ia
: a genus of slender brown nematode worms (family Trichostrongylidae) parasitic in the abomasum of ruminants where their presence in numbers is associated with gastritis, scouring, or general unthriftiness