23-letter words containing a, n, d, o, u, i
- lossy audio compression — (audio, compression) Any audio compression algorithm which does not retain every bit of data but only reproduces a signal that sounds more or less like the original. Examples are MP1, MP2, MP3, AAC.
- main distribution frame — (networking) (MDF) The network closet containing the main hub.
- maturity-onset diabetes — diabetes (def 4).
- message digest function — one-way hash function
- modern sequence dancing — a form of dancing in which ballroom dance steps are used as the basis of a wide variety of different dances typically performed in a sequence
- nondisclosure agreement — a legal contract in which one or more parties agree to keep information, as a trade secret, confidential and protected for a specific amount of time. Abbreviation: NDA.
- one-hundred share index — the average prices for shares of the largest, most actively traded, 100 companies on the London Stock Exchange
- ordinary life insurance — life insurance with premiums paid throughout the lifetime of the insured.
- parasexual reproduction — reproduction by recombination of genes from genetically dissimilar nuclei within binucleate or multinucleate cells, as in filamentous fungi.
- percentage distribution — a frequency distribution is which individual frequencies are shown as a percentage of the total frequencies
- peroxymonosulfuric acid — persulfuric acid (def 1).
- photoelectric magnitude — the magnitude of a star determined using a photometer plus a filter to select light or other radiation of the desired wavelength
- 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.
- product differentiation — the real or illusory distinction between competing products in a market
- productivity bargaining — the process of reaching an agreement (productivity agreement) through collective bargaining whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
- professional misconduct — a violation of the rules or boundaries set by the governing body of a profession
- profit and loss account — income account (def 2).
- program design language — Any of a large class of formal and profoundly useless pseudo-languages in which management forces one to design programs. Too often, management expects PDL descriptions to be maintained in parallel with the code, imposing massive overhead of little or no benefit. See also flow chart.
- 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.
- quantum flavourdynamics — a gauge theory of the electromagnetic and weak interactions
- queen charlotte islands — a group of about 150 islands off the W coast of Canada: part of British Columbia. Pop: about 6000 (latest est). Area: 9596 sq km (3705 sq miles)
- rank outsider/outsiders — If one of the people in a competition is described as a rank outsider, they are considered to have very little chance of winning.
- rectangular coordinates — Usually, rectangular coordinates. either of two Cartesian coordinates in which the axes meet at right angles.
- route of administration — A route of administration is the means by which a drug or agent enters the body, such as by mouth or by injection.
- russian orthodox church — the national Church of Russia, constituting a branch of the Eastern Church, presided over by the Patriarch of Moscow
- school (crossing) guard — a person, either an adult or an older student, whose duty it is to help children cross streets near schools safely
- security association id — (networking) (SAID) A 32-bit field added to packet headers for encryption and authentication in the proposed Internet Protocol Version 6.
- severinus de monzambano — Samuel von [zah-moo-uh l fuh n] /ˈzɑ mu əl fən/ (Show IPA), ("Severinus de Monzambano") 1632–94, German jurist and historian.
- social education centre — a daycentre, run by a local authority, for people with learning disabilities and sometimes also for people who have physical disabilities or are mentally ill
- st. pierre and miquelon — two small groups of islands off the S coast of Newfoundland: an overseas territory of France; important base for fishing. 3 sq. mi. (240 sq. km). Capital: St. Pierre.
- state-trading countries — countries whose export and import trading is government controlled
- sustainable development — supporting economy via renewable resources
- take sth in your stride — In British English, if you take a problem or difficulty in your stride, you deal with it calmly and easily. The American expression is take something in stride.
- thousand and one nights — a collection of Eastern folk tales derived in part from Indian and Persian sources and dating from the 10th century a.d.
- to add insult to injury — You say to add insult to injury when mentioning an action or fact that makes an unfair or unacceptable situation even worse.
- to be at your wit's end — If you say that you are at your wits' end, you are emphasizing that you are so worried and exhausted by problems or difficulties that you do not know what to do next.
- tongue-and-groove joint — a long, narrow cut or indentation in a surface, as the cut in a board to receive the tongue of another board (tongue-and-groove joint) a furrow, or a natural indentation on an organism.
- transcendental equation — an equation that involves transcendental functions.
- transcendental function — a function that is not an algebraic function.
- trellis code modulation — (TCM) A modulation technique with hardware error detection and correction.
- trials and tribulations — difficult experiences
- turn-and-bank indicator — bank-and-turn indicator.
- turn-and-slip indicator — bank-and-turn indicator.
- unconditional discharge — the release of a defendant without having to spend time on parole or probation
- uniform commercial code — a codification of commercial laws designed to provide uniformity among the states
- unincorporated business — a privately owned business, often owned by one person who has unlimited liability as the business is not legally registered as a company
- united church of canada — the largest Protestant denomination in Canada, formed in the 1920s by incorporating some Presbyterians and most Methodists
- united states air force — the permanent or regular military air force of the United States, established in 1947 as a separate service under the authority of the Department of Defense: a branch of the U.S. Army before 1947. Abbreviation: USAF.
- united states of brazil — former official name of Brazil.