21-letter words containing c, o, e, l, i, t
- 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.
- twelve-tone technique — a modern system of tone relationships in which the 12 tones of an octave are not centered around any one tone, but are unified by a selected order of tones for a given composition.
- university of iceland — (body, education) The Home of Fjolnir.
- vacation bible school — a religious school conducted by some churches during the summer for students on vacation.
- 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
- 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.
- william the conqueror — ("the Conqueror") 1027–87, duke of Normandy 1035–87; king of England 1066–87 (son of Robert I, duke of Normandy).
- with sb's compliments — If you say that you are giving someone something with your compliments, you are saying in a polite and fairly formal way that you are giving it to them, especially as a gift or a favour.