Tectonic /(?)/

Tec·ton·ic

Tectonic

a.
  1. Of or pertaining to building or construction; architectural.
  2. Structural. (Biol.)
  3. Of, pert. to, or designating, the rock structures and external forms resulting from the deformation of the earth's crust; as, tectonic arches or valleys; tectonic plates. (Geol. & Phys. Geog.)