15-letter words containing p, a, r, g, h
- vanishing spray — a substance that disperses without trace shortly after it is sprayed onto a surface, used in football to mark a temporary line behind which defenders must stand when a free kick is taken
- walpurgis night — (especially in medieval German folklore) the evening preceding the feast day of St. Walpurgis, when witches congregated, especially on the Brocken.
- weatherproofing — Present participle of weatherproof.
- xerographically — In a xerographic way; by xerography.
- xeroradiography — an x-ray utilizing a specially coated plate that allows a picture to be developed without the use of liquid chemicals.
- xylotypographic — involving or pertaining to xylotypography
- zoogeographical — Pertaining to zoogeography.