per quod (p<<schwa>>r kwod), adv. & adj.[Latin “whereby”] Requiring reference to additional facts; (of libel or slander) actionable only on allegation and proof of special damages. See actionable per quod under ACTIONABLE; libel per quod under LIBEL; slander per quod under SLANDER. [Cases: Libel and Slander  1, 33. C.J.S. Libel and Slander; Injurious Falsehood§§ 2, 5–6, 10, 47, 198.]

[Blacks Law 8th]