Pronunciation: (red'pen'sul), [key]
—v.t., -ciled, -cil•ing or (esp. Brit.) -cilled, -cil•ling.
to delete, censor, correct, or abridge (written material) with or as if with a pencil having a red lead: His book was heavily red-penciled before it got clearance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.