23-letter words containing a, l, u, n, o

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.
polytetrafluoroethylene — any polymer, plastic, or resin having the formula (C 2 F 4) n , prepared from tetrafluoroethylene, noted for its slippery, nonsticking properties, and used in the manufacture of gaskets, electrical insulation, tubing, candy molds, container linings, frying-pan coatings, etc.
precautionary principle — the precept that an action should not be taken if the consequences are uncertain and potentially dangerous
price escalation clause — a clause in a contract allowing the seller to raise prices if the cost of inputs increases
probabilistic automaton — nondeterministic automaton
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
puerto rican royal palm — a feather palm, Roystonea borinquena, of Puerto Rico and St. Croix, having leaves about 10 feet (3 meters) long and egg-shaped, yellowish-brown fruit.
put in a false position — to cause misunderstanding of the intentions, opinions, etc. of
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
quay financial software — CSK Software
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)
rectangular coordinates — Usually, rectangular coordinates. either of two Cartesian coordinates in which the axes meet at right angles.
relative sunspot number — a number indicating the degree of sunspot activity on the sun as a factor of observer idiosyncrasies, the number of sunspot groups, and the number of individual sunspots.
rocky mountain beeplant — a rank-smelling plant, Cleome serrulata, of the caper family, native to the western U.S., having showy, dense clusters of pink or white flowers, frequented by bees.
roentgen equivalent man — the dose of ionizing radiation that produces the same effect in man as one roentgen of x- or gamma-radiation
school (crossing) guard — a person, either an adult or an older student, whose duty it is to help children cross streets near schools safely
settle (one's) accounts — To settle accounts with an enemy or opponent means to bring your fight or quarrel to an end by defeating them.
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
social insurance number — a nine-digit number used by the federal government to identify a citizen
social security payment — a payment of social security made to an individual
squamous cell carcinoma — a carcinoma that arises from squamous epithelium in the skin and sometimes in the mucous membranes.
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.
steal someone's thunder — to strike, drive, inflict, give forth, etc., with loud noise or violent action.
stimulus generalization — generalization (def 4a).
stimulus-generalization — the act or process of generalizing.
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.
suprasegmental phonemes — phonemes or features of speech, as pitch, stress, and juncture, that may extend over and modify series of segmental phonemes
sustainable development — supporting economy via renewable resources
system control language — (language) (SCL) The command language for the VME/B operating system on the ICL2900. SCL was block structured and supported strings, lists of strings ("superstrings"), integer, Boolean, and array types. You could trigger a block whenever a condition on a variable value occured. It supported macros and default arguments. Commands were treated like procedure calls.
thank one's lucky stars — any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night.
throw down the gauntlet — a medieval glove, as of mail or plate, worn by a knight in armor to protect the hand.
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 call someone's bluff — If you call someone's bluff, you tell them to do what they have been threatening to do, because you are sure that they will not really do it.
to have your hands full — If you have your hands full with something, you are very busy because of it.
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 make your skin crawl — If something makes your skin crawl or makes your flesh crawl, it makes you feel shocked or disgusted.
to rest on your laurels — If someone is resting on their laurels, they appear to be satisfied with the things they have achieved and have stopped putting effort into what they are doing.
to turn over a new leaf — If you say that you are going to turn over a new leaf, you mean that you are going to start to behave in a better or more acceptable way.
to win the popular vote — to get a majority as regards the votes cast by individual voters
topological equivalence — the property of two topological spaces such that there is a homeomorphism from one to the other.
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.

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