subduction noun. [sǝb'dʌkʃ(ǝ)n] LME.
[Latin subductio(n-), formed as SUBDUCT: see -ION.]
1. Subtraction, deduction; withdrawal, removal; an instance of this. Now rare. LME.
b. Surreptitious or secret withdrawal. M17-E18.

2. The action of subduing, the fact of being subdued; subjection. (Foll. by to.) Now rare. L17.

3. Geology. The sideways and downward movement of the edge of a lithospheric plate into the mantle beneath a neighbouring plate. L20.

Comb.:
subduction zone Geology a strip along which subduction is occurring.

[TahlilGaran] English Dictionary ▲