13-letter words containing o, p, e, n, g, r
- temple orange — a hybrid fruit, Citrus nobilis, that is a cross between the sweet orange and the tangerine.
- temporizingly — in a yielding manner
- tribune group — (in Britain) a group made up of left-wing Labour Members of Parliament: founded 1966
- triple-tongue — to interrupt the wind flow by moving the tongue as if pronouncing t and t and k successively, especially in playing rapid passages or staccato notes on a brass instrument.
- tropocollagen — the molecular unit which forms collagen, consisting of three polypeptide chains
- uncooperating — to work or act together or jointly for a common purpose or benefit.
- unprogressive — favoring or advocating progress, change, improvement, or reform, as opposed to wishing to maintain things as they are, especially in political matters: a progressive mayor.
- unreproaching — not reproaching or blaming
- uranite group — the mineralogical group including uranites and related minerals.
- volute spring — a coil spring, conical in shape, extending in the direction of the axis of the coil.
- watering spot — watering hole
- waterproofing — Chiefly British. a raincoat or other outer coat impervious to water.
- weapons-grade — Weapons-grade substances such as uranium or plutonium are of a quality which makes them suitable for use in the manufacture of nuclear weapons.
- women's group — A women's group is a group of women who meet regularly, usually in order to organize campaigns.
- workingperson — a workingman or workingwoman.