17-letter words containing m, o, u, l, t, s
- urogenital system — the urinary tract and reproductive organs
- utopian socialism — (sometimes initial capital letter) an economic system based on the premise that if capital voluntarily surrendered its ownership of the means of production to the state or the workers, unemployment and poverty would be abolished.
- wallowa mountains — a mountain range in NE Oregon. Highest peak, Sacajawea Peak, 9838 feet (2999 meters).
- welshman's button — an angler's name for a species of caddis fly, Sericostoma personatum