21-letter words containing e, c, o, l, g, i
- south gloucestershire — a unitary authority of SW England, in Gloucestershire: formerly (1975–96) part of the county of Avon. Pop: 246 800 (2003 est). Area: 510 sq km (197 sq miles)
- supergranulation cell — one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.
- teleological argument — the argument purporting to prove the existence of God from empirical facts, the premise being that the universe shows evidence of order and hence design
- the rock of gibraltar — a limestone promontory at the tip of S Spain
- threshold wage policy — a policy whereby wages are increased in accordance with inflation