Found 2 items, similar to upthrow.
English → English (WordNet) Definition: upthrow upthrow n : (geology) a rise of land to a higher elevation (as in the process of mountain building) [syn: upheaval, uplift, upthrust]
English → English (gcide) Definition: Upthrow Upthrow \Up*throw"\, v. t. To throw up. --Drayton. [1913 Webster] Upthrow \Up"throw`\, n. (Mining) See Throw, n., 9. [1913 Webster]