tectonic

adjective

tec·​ton·​ic tek-ˈtä-nik 

1

: of or relating to tectonics

2

: having a strong and widespread impact

a tectonic shift in voting patterns

tectonically

tek-ˈtä-ni-k(ə-)lē 

adverb

Synonyms of tectonic

• major
• significant
• historic
• important
• big

Examples of tectonic in a Sentence

There has been a recent tectonic shift in voting patterns.

a tectonic shift in societal trends occurred in the 1960s

Recent Examples on the Web

That’s when tectonic plates first pushed them out of the sea, but the shaping of the pillars via coastal erosion only occurred over the last few thousand years. —ArsTechnica, 2 May 2026

As Earth’s tectonic plates shifted, huge volumes of volcanic gas and carbon dioxide transformed the atmosphere, sucking oxygen out of the oceans and devastating shallow-water environments. —Marlowe Starling, Quanta Magazine, 1 May 2026

The tool helps distinguish whether ancient environmental changes were caused by global climate shifts or simple tectonic movement. —Mrigakshi Dixit, Interesting Engineering, 29 Apr. 2026

On Earth, corundum typically forms deep within the planet under specific geological conditions tied to tectonic activity. —Ryan Brennan, Kansas City Star, 27 Apr. 2026

Word History

Etymology

probably borrowed from German tektonisch "pertaining to broader structural features of the earth's crust," earlier "of building or construction," borrowed from Late Latin tectonicus "of a builder or architect," borrowed from Greek tektonikós "of a carpenter, skilled in carpentry or building," from tekton-, téktōn "woodworker, carpenter, craftsman" + -ikos -ic entry 1; téktōn going back to Indo-European *tetḱ-on- (whence also Sanskrit takṣan-, tákṣā "carpenter," Avestan tašan-, tašā "builder, creator"), n-stem derivative from a verbal base *tetḱ- "fashion, produce," whence Sanskrit tákṣati "(s/he) fashions, builds from wood," Avestan tāšt "(s/he) forms," Latvian tešu, tèst "to hew," Old Church Slavic tešǫ, tesati "to hew, fell," (with o-grade) Lithuanian tašýti "to hew"

Note: A root of the form *tetḱ- would be peculiar for Indo-European. Helmut Rix, et al., (Lexikon der indogermanischen Verben, 2. Ausgabe, Wiesbaden, 2001) rescue the situation by hypothesizing that *tetḱ- represents a pre-Indo-European reduplicated aorist, *te-tḱ-, of a root *teḱ-, seen in unreduplicated form in Greek téknon "child, young of an animal" and étekon, tekeîn, aorist of tíktō, tíktein "to give birth to, beget, generate" (see dystocia). However—aside from the certain correspondence of Greek téktōn with Vedic Sanskrit takṣan-, Avestan tašan- —all other outcomes of this supposed root can be accounted for as *teḱ-s-, an extended form of *teḱ-. To explain this anomaly, Andrew Sihler (New Comparative Grammar of Greek and Latin, Oxford, 1995, p. 225) hypothesizes that téktōn is a conflation of a regular derivative *texōn and an unattested agentive derivative *téktōr, going back to *teks-tor-, (with cluster simplification as in hektós "sixth" corresponding to héx "six"). Traditionally added to the compared forms given in the etymology above are Latin texere "to weave, form by plaiting or twining, construct" and other words (see at text entry 1). See also technical entry 1.

First Known Use

1894, in the meaning defined at sense 1

Rhymes for tectonic

• atonic
• benthonic
• bionic
• bosonic
• bubonic
• canonic
• carbonic
• cyclonic
• demonic
• dystonic
• hadronic
• harmonic

Kids Definition

tectonic

adjective

tec·​ton·​ic tek-ˈtän-ik 

: of or relating to tectonics