23-letter words containing l, a, c, e, d, m
- pest control department — the local government department responsible for controlling such pests as rats and mice
- photoelectric magnitude — the magnitude of a star determined using a photometer plus a filter to select light or other radiation of the desired wavelength
- physical memory address — physical address
- plain old documentation — (text) (pod, occasionally "POD") A simple markup language used to embed documentation, literate programming-style, in Perl programs. Pod readers and converters are part of the standard Perl distribution and the documentation provided with Perl is all in pod format.
- private limited company — a company whose shares can be bought by the public
- professional misconduct — a violation of the rules or boundaries set by the governing body of a profession
- publicly-quoted company — a company whose shares are traded on a stock exchange
- quantum electrodynamics — the quantum field theory that deals with the electromagnetic field and its interaction with electrons and positrons. Abbreviation: QED.
- radial drilling machine — a machine in which the drilling head is mounted to slide along a radial arm which can be rotated, raised, or lowered on a vertical mast to adjust the position of the drill above the workpiece
- rate-of-climb indicator — a flight instrument that indicates the rate of climb or descent of an aircraft.
- real simple syndication — (spelling) Illiterate form of Really Simple Syndication.
- secondary modern school — (formerly) a secondary school offering a more technical or practical and less academic education than a grammar school
- sheltered accommodation — housing specially designed to provide a safe environment for the elderly, handicapped, or disabled, often with some shared facilities and a caretaker
- sierra madre occidental — the system of mountains in the west of Mexico
- social democratic party — History/Historical. a political party in Germany advocating a form of social organization based on the economic and political ideology of Karl Marx.
- somaliland protectorate — official name of the former British Somaliland.
- specialite de la maison — the specialty of the house (used in referring to the most important dish served by a restaurant).
- transcendental argument — an argument designed to make explicit the conditions under which a certain kind of knowledge is possible, esp those of Kant
- transcendental idealism — the Kantian doctrine that reality consists not of appearances, but of some other order of being whose existence can be inferred from the nature of human reason
- trellis code modulation — (TCM) A modulation technique with hardware error detection and correction.
- uniform commercial code — a codification of commercial laws designed to provide uniformity among the states
- 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