16-letter words containing s, t, a, y, e
- yellowstone lake — a lake in NW Wyoming, in Yellowstone National Park. 20 miles (32 km) long; 140 sq. mi. (363 sq. km).
- ziegler catalyst — any of a group of catalysts, such as titanium trichloride (TiCl3) and aluminium alkyl (Al(CH3)3), that produce stereospecific polymers