The act of protecting something with fenders, or the fenders themselves collectively; used especially in nautical contexts for collision protection.
From 'fender' (protective device) with the gerund suffix '-ing' (the action of). Most common in maritime usage where boats use rope fenders to prevent damage when docking.
Ships use 'fendering'—hanging old tires or padded bumpers along their sides—which looks rough but is brilliant design that's barely changed since wooden sailing ships needed rope buffers.
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