Definition of tectonic adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//tekˈtɒnɪk//
; NAmE NAmE//tekˈtɑːnɪk//
[only before noun] (geology)
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connected with the structure of the earth’s surface see also plate tectonics Word Originmid 17th cent. (originally relating to building or construction): via late Latin from Greek tektonikos, from tektōn ‘carpenter, builder’.
See the Oxford Advanced American Dictionary entry: tectonic