19-letter words containing u, n, p, r, a, i
- upper carboniferous — Pennsylvanian (defs 2, 4).
- vapor recovery unit — A vapor recovery unit is a system for recovering vapors from inside sealed crude oil or condensate tanks, with a scrubber (= a device for removing unwanted substances) and compressor (= a device that raises pressure).
- what's your poison? — what would you like to drink?