upthrow noun. ['ʌpƟrǝʊ] E19.
[from the verb.]
1. Geology.
a. The upward movement of strata on one side of a fault; the extent of this. E19.
b. = UPTHRUST noun 1a. E19.

2. gen. The action or an instance of throwing or casting something upwards; a thing thrown up, a manifestation. M19.

[TahlilGaran] English Dictionary ▲

upthrow verb trans. [ʌp'Ɵrǝʊ] Chiefly poet. Infl. as THROW verb; pa. t. usu. upthrew [ʌp'Ɵru:], pa. pple usu. upthrown [ʌp'Ɵrǝʊn]. E17.
[from UP- + THROW verb.]
Throw or cast upwards, toss or fling up.

[TahlilGaran] English Dictionary ▲