10-letter words containing i, s, m, a, t, c
- timocharis — a crater in the second quadrant of the face of the moon: about 25 miles (40 km) in diameter.
- usumacinta — a river in Central America, flowing NW along the W Guatemala-SE Mexico border, through Mexico, to the Gulf of Campeche. About 600 miles (965 km) long.
- vaticanism — the doctrine of the absolute supremacy of the pope.