underthrust
Verb
Meaning
underthrust (third-person singular simple present underthrusts, present participle underthrusting, simple past and past participle underthrusted or underthrust)
(geology, of a tectonic plate) To thrust under another
Verb
underthrust (third-person singular simple present underthrusts, present participle underthrusting, simple past and past participle underthrusted or underthrust)
(geology, of a tectonic plate) To thrust under another