23-letter words containing a, l, c, p, t, o
- stereospecific catalyst — a catalyst for stereospecific chemical reactions
- structural anthropology — a school of anthropology founded by Claude Lévi-Strauss and based loosely on the principles of structural linguistics.
- structural unemployment — unemployment caused by basic changes in the overall economy, as in demographics, technology, or industrial organization.
- the metropolitan police — the police organization that is responsible for Greater London, excluding the City of London
- the scottish parliament — the devolved national legislature of Scotland, located in Edinburgh
- to call a spade a spade — If you say that someone calls a spade a spade, you mean that they speak clearly and directly about things, even embarrassing or unpleasant things.
- to clap eyes on someone — To clap eyes on someone or something, or set or lay eyes on them, means to see them.
- to have a police record — If you say that somebody has a police record, you mean that they have committed a crime or crimes and the police have a record of this.
- to jump to a conclusion — If you say that someone jumps to a conclusion, you are critical of them because they decide too quickly that something is true, when they do not know all the facts.
- to keep your nose clean — If you keep your nose clean, you behave well and stay out of trouble.
- to pluck up the courage — If you pluck up the courage to do something that you feel nervous about, you make an effort to be brave enough to do it.
- to wipe the slate clean — If you wipe the slate clean, you decide to forget previous mistakes, failures, or debts and to start again.
- topological equivalence — the property of two topological spaces such that there is a homeomorphism from one to the other.
- turn-and-slip indicator — bank-and-turn indicator.
- variable contrast paper — printing paper in which the contrast of the image is controlled by the color of the printing light.
- 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
- weak accumulation point — accumulation point.
- wind cave national park — a national park in SW South Dakota. 41½ sq. mi. (107 sq. km).