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intr.v. re·coiled, re·coil·ing, re·coils
1. To spring back, as upon firing.
2. To shrink back, as in fear or repugnance.
3. To fall back; return: "Violence does, in truth, recoil upon the violent" (Arthur Conan Doyle).
n. (also rē′koil′)
1. The backward action of a firearm upon firing.
2. The act or state of recoiling; reaction.
[Middle English recoilen, from Old French reculer : re-, re- + cul, buttocks (from Latin cūlus; see (s)keu- in Indo-European roots).]