15-letter words containing u, y, s
- yorke peninsula — a peninsula in S Australia between Spencer Gulf and the Gulf of St. Vincent. 160 miles (257 km) long and 20–35 miles (32–56 km) wide.
- young's modulus — a coefficient of elasticity of a substance, expressing the ratio between a stress that acts to change the length of a body and the fractional change in length caused by this force.
- youth orchestra — an orchestra that is made up of young musicians
- zygophyllaceous — belonging to the Zygophyllaceae, the caltrop family of plants.