23-letter words containing i, n, s, u, l, o
- unconstitutional strike — a stoppage of work which violates the dispute procedure agreed between the employer and the trade union or trade unions concerned
- united states of brazil — former official name of Brazil.
- until hell freezes over — If you say that you will do something until hell freezes over, you are emphasizing that you will do it for a very long time or for ever.
- urea-formaldehyde resin — any of a group of resins formed by the interaction of urea and formaldehyde under conditions that include heat and pH control: used chiefly in the manufacture of buttons, baking enamels, and for making fabrics wrinkle-resistant.
- van der waals' equation — an equation of state relating the pressure, volume, and absolute temperature of a gas, taking into account the finite size of the molecules and the attractive force between them.
- vestibulocochlear nerve — either one of the eight pairs of cranial nerves that supply the cochlea and semicircular canals of the internal ear and contribute to the sense of hearing
- viscount horatio nelson — Viscount Horatio, 1758–1805, British admiral.
- viscount melville sound — an arm of the Arctic Ocean between Victoria and Prince of Wales islands to the S and Melville and Bathurst islands to the N, in the Northwest Territories and Nunavut, Canada. 250 miles (400 km) long and 100 miles (160 km) wide.
- volumetric displacement — the volume of air per revolution that passes through a mechanical pump when the pressure at the intake and the exhaust is the same as that of the atmosphere
- voyageurs national park — a national park in N Minnesota. 343 sq. mi. (888 sq. km).
- wholly-owned subsidiary — A wholly-owned subsidiary is a company whose shares are all owned by another company.