21-letter words containing r, o, l, c
- to play the race card — if someone plays the race card they bring up the issue of race in a discussion, perhaps for sympathy or to seek popularity by appealing to racist sentiment
- to pull your socks up — If you tell someone to pull their socks up, you mean that they should start working or studying harder, because they have been lazy or careless.
- topgallant forecastle — a partial weather deck on top of a forecastle superstructure; forecastle deck.
- topological invariant — a property of a topological space that is a property of every space related to the given space by a homeomorphism.
- total recoverable gas — Total recoverable gas is the amount of gas which is still left in the ground in gas fields that have already been worked.
- total recoverable oil — Total recoverable oil is the amount of oil which is still left in the ground in oilfields that have already been worked.
- traffic control tower — an elevated structure for the visual observation and control of the air and ground traffic at an airport
- trichloroacetaldehyde — chloral (def 1).
- trichloronitromethane — chloropicrin.
- university of iceland — (body, education) The Home of Fjolnir.
- up close and personal — face to face, intimately
- voice-stress analyzer — a machine purported to detect stress in a human voice and to ascertain a person's truthfulness.
- volumetric efficiency — the ratio of fluid delivered by a piston or ram pump per stroke to the displacement volume of the piston or ram
- voluntary association — a group of individuals joined together on the basis of mutual interest or common objectives, especially a business group that is not organized or constituted as a legal entity.
- volunteers of america — a religious reform and relief organization, similar to the Salvation Army, founded in New York City in 1896 by Ballington Booth, son of William Booth, the founder of the Salvation Army. Abbreviation: VOA.
- warm silence software — A small company run by(?) Robin Watts, producing software for the Acorn Archimedes.
- wet collodion process — a photographic process, in common use in the mid-19th century, employing a glass photographic plate coated with iodized collodion and dipped in a silver nitrate solution immediately before use.
- wholesale price index — an indicator of price changes in the wholesale market
- william the conqueror — ("the Conqueror") 1027–87, duke of Normandy 1035–87; king of England 1066–87 (son of Robert I, duke of Normandy).
- x-ray crystallography — the determination of the structure of a crystal by the use of x-ray diffraction.
- yellow mercuric oxide — a slightly crystalline, water-soluble, poisonous compound, HgO, occurring as a coarse, orange-red powder (red mercuric oxide) or as a fine, orange-yellow powder (yellow mercuric oxide) used chiefly as a pigment in paints and as an antiseptic in pharmaceuticals.
- zero-emission vehicle — a vehicle, as an automobile, that does not directly produce atmospheric pollutants. Abbreviation: ZEV.