(ˈ)tek|tänik adjective
Etymology: Late Latin tectonicus, from Greek tektonikos of a builder or carpenter, skilled in building, from tektōn carpenter, builder + -ikos -ic — more at technical
: of or relating to tectonics: as
a. : architectural , architectonic
b. : of or relating to the deformation of the earth's crust, the forces involved in or producing such deformation, and the resulting rock structures and external forms
• tec·ton·i·cal·ly -nə̇k(ə)lē adverb