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A geologic process in which one edge of one crustal plate is forced below the edge of another.
[French, from Latin subductus, past participle of subdūcere, to draw away from below : sub-, sub- + dūcere, to lead; see deuk- in Indo-European roots.]
sub·duc′tal (-təl) adj.
1. (Physiology) physiol to draw or turn (the eye, etc) downwards
2. rare to take away; deduct
[C17: from Latin subdūcere, from sub- + dūcere to lead, bring]
1. to cause the subduction of.
2. Archaic. to take away.v.i.
3. to undergo subduction.
[1565–75; < Latin subductus, past participle of subdūcere to draw up, withdraw =sub- sub- + dūcere to lead]
Past participle: subducted