20-letter words containing po
- proportional spacing — a feature of some typewriters and other output devices whereby the space allotted to each character is determined by the width of the character
- refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
- request for proposal — (programming) (RFP) The publication by a prospective software purchaser of details of the required system in order to attract offers by software developers to supply it. Software development under contract starts with the selection of the software developer by the customer. A request for proposal (also called in Britain an "invitation to tender") is the beginning of the selection process.
- salmonella poisoning — an illness caused by ingestion of a salmonella bacterium
- separation of powers — the principle or system of vesting in separate branches the executive, legislative, and judicial powers of a government.
- service access point — (networking) (SAP) The OSI term for the component of a network address which identifies the individual application on a host which is sending or receiving a packet. Different SAPs distinguish between different services or applications on a host, e.g. electronic mail, FTP, HTTP.
- single point mooring — monobuoy.
- spontaneous abortion — miscarriage (def 1).
- spontaneous recovery — the reappearance of a response after its extinction has been followed by a period of rest
- spontaneous-abortion — Also called voluntary abortion. the removal of an embryo or fetus from the uterus in order to end a pregnancy.
- spotted crane's-bill — the American wild geranium, Geranium maculatum.
- spotted joe-pye weed — joe-pye weed (def 2).
- square of opposition — a diagrammatic representation of the opposition of categorical propositions.
- string correspondent — stringer (def 6).
- subpoena duces tecum — a writ directing a person to appear in court and to bring some document described in the writ.
- supersonic transport — a commercial jet airplane that can fly faster than the speed of sound. Abbreviation: SST.
- teletype corporation — (company) The company which made Teletype teletypewriters. Address: Skokie, Illinois, USA.
- to line your pockets — If you say that someone is lining their own or someone else's pockets, you disapprove of them because they are making money dishonestly or unfairly.
- transformation point — a temperature at which the transformation of one microconstituent to another begins or ends during heating or cooling.
- transposed conjugate — adjoint (def 2).
- transposition cipher — a cipher that rearranges the letters of the plain text in a different sequence.
- tropospheric scatter — transmission of radio frequency signals that have been scattered from irregularities in the troposphere to locations hundreds of kilometers distant.
- uniform crime report — an annual report issued by the FBI that presents data on selected categories of crimes reported to the police. Abbreviation: UCR.
- unique selling point — a feature of a product that is emphasized in advertising material and sales presentations