We found 4 dictionaries that define the word underthrusting:

General (3 matching dictionaries)

1. underthrusting: Merriam-Webster
2. underthrusting: Wiktionary
3. underthrusting: TheFreeDictionary.com

Computing (1 matching dictionary)

4. underthrusting: Encyclopedia

(Note: See underthrust as well.)

Definitions from Wiktionary (underthrust) ▸ verb:  (geology, of a tectonic plate) To thrust under another ▸ Also see underthrust Opposite: overthrusting, uplift, upthrust ▸ Words similar to underthrusting ▸ Usage examples for underthrusting ▸ Idioms related to underthrusting ▸ Wikipedia articles (New!) ▸ Words that often appear near underthrusting ▸ Rhymes of underthrusting ▸ Invented words related to underthrusting