Definition of orismology in US English:

orismology

noun

rare
  • Technical terms collectively, terminology.

Origin

Early 19th century; earliest use found in William Kirby (1759–1850), entomologist and naturalist. From ancient Greek ὁρισμός definition, with omission of initial aspiration + -logy.

Pronunciation

orismology

/ˌɒrɪzˈmɒlədʒi/