The Collaborative International Dictionary of English v.0.48:
aircraftman \aircraftman\, aircraftsman \aircraftsman\n. 1. 1 a noncommissioned officer in the British Royal Air Force. [WordNet 1.5]WordNet (r) 3.0 (2006):
aircraftman n 1: a noncommissioned officer in the British Royal Air Force [syn: aircraftsman, aircraftman]