† hercotecˈtonic,a.Obs.rare—1. [f.Gr. ἕρκος wall, barrier + τεκτονικός tectonic.] Of or pertaining to the construction of walls or fortifications. 1672Sir S. Morland (title) The Count of Pagan's Method of Delineating..Fortifications..Reduced to English Measure, and converted into Hercotectonick-Lines.