21-letter words containing t, u, l, i, p, o
- 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.
- thermoelectric couple — thermocouple.
- to be public property — to be publicly owned
- triple superphosphate — superphosphate (def 2).
- triple-superphosphate — Also called acid phosphate. a mixture of calcium acid phosphate and calcium sulfate prepared by treating phosphate rock with sulfuric acid: used chiefly as a fertilizer.
- ulster unionist party — a Northern Irish political party advocating the maintenance of union with the UK
- up to the elbows with — busily occupied with; deeply immersed in