WordNet
writing arm
n. an arm of a tablet-armed chair; widened to provide a writing surface
Usage examples of "writing arm".
We understand that, under the circumstances, it might be impossible for you to personally sign for our important correspondenceyour writing arm might be fractured, sprained or attached to an intravenous tube.
Ernest Hemingway cutting off a bull's ear, his right arm (his writing arm) streaked with blood.