haruspicy

noun

1. (countable, uncountable)Divination by use of animal entrails, usually the victims of sacrifice.

   “Different kinds of divination, which have passed for sciences, we have had: […] 6. Haruspicy, by inspecting the bowels of animals. […]”

   “That our fates should be made dependent upon the stars, planets, and constellations, however preposterous a conceit, at least imparts a dignity to our nature by conjoining earth with Heaven: but that the doom of kings, empires, and individuals, should be regulated […] by the entrails of victims, as analysed by the butchers of Haruspicy […] is an evidence of stupid credulity that levels civilised man to the savage […]”