a. [f. as prec. + -AN.] Of or pertaining to a camp: camp-.
1657. G. Starkey, Helmont’s Vind., 261. Castrensian or Camp Feavers.
1776. Kentish Trav. Compan., 144. The castrensian amphitheatre.
1807. G. Chalmers, Caledonia, I. I. iv. 125, note. No castrensian remains.
1831–4. De Quincey, Caesars, Wks. IX. 102. A mere military title … purely castrensian.
