Definition from Wiktionary, the free dictionary
subduction (plural subductions)
- The action of being pushed or drawn beneath another object.
- The act of subducting or taking away.
- (Can we find and add a quotation of Bishop Hall to this entry?)
- Arithmetical subtraction.
- (Can we find and add a quotation of Sir M. Hale to this entry?)
the action where one tectonic plate is pushed beneath another