【地质】 地壳构造上的。
(of a change or development)very significant or considerable
(变化、发展)意义重大的,重要的;可观的
-
the last decade has witnessed a tectonic shift in world affairs. 过去十年世界事务发生了重大的转变。
of or relating to building or construction
(与)建筑(有关)的;(与)构造(有关)的。
"mid 17th cent. (in sense 2): via late Latin from Greek