23-letter words containing o, n, a, c, l, u
- fundamental interaction — any of the four basic interactions that occur in nature: the gravitational, electromagnetic, strong, and weak interactions
- grand duchess charlotte — Grand Duchess (Charlotte Aldegonde Elise Marie Wilhelmine) 1896–1985, sovereign of Luxembourg 1919–64.
- heterogeneous catalysis — Heterogeneous catalysis is catalysis in which the catalyst does not take part in the reaction that it increases.
- human leukocyte antigen — HLA.
- hydrochlorofluorocarbon — Any of a class of inert compounds of carbon, hydrogen, hydrocarbons, chlorine, and fluorine, used in place of chlorofluorocarbons as being somewhat less destructive to the ozone layer.
- immunological tolerance — the absence of antibody production in response to the presence of antigens, usually as a result of previous exposure to the antigens
- incontestability clause — a clause in a life-insurance or health-insurance policy stating that the insurer cannot contest the policy after a stated period of time.
- industrial psychologist — a person who studies human behaviour and cognitive processes in relation to the working environment
- initial public offering — An initial public offering is the first offering of stock when a company goes public.
- internal reconstruction — the hypothetical reconstruction of an earlier stage of a language or of some part of it, as its phonology, by deductions from irregularities in its present structure, as the reconstruction of a stage in English when certain instances of r were related to s in a systematic way by comparing the pair was:were to other pairs, as lose:forlorn.
- juan rodriguez cabrillo — Juan Rodríguez [rod-ree-ges] /rɒdˈri gɛs/ (Show IPA), (Joao Rodrigues Cabrilho) 1499?–1543, Spanish explorer, born in Portugal: discovered California.
- laughlin air force base — U.S. Air Force installation in SW Texas, SE of Del Rio.
- locally euclidean space — a topological space in which each point has a neighborhood that is homeomorphic to an open set in a Euclidean space of specified dimension.
- 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.
- micro assembly language — (language) (MAL) A microprogramming language with high-level syntax, used in the reference below. See also Mic-1, Mac-1.
- national safety council — a non profit organization that promotes and ensures health and safety standards
- 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.
- nonverbal communication — gesture and facial expression
- north ossetian republic — a constituent republic of S Russia, on the N slopes of the central Caucasus Mountains. Capital: Vladikavkaz. Pop: 709 900 (2002). Area: about 8000 sq km (3088 sq miles)
- not a hair out of place — If you say that someone has not a hair out of place, you are emphasizing that they are extremely smart and neatly dressed.
- occupational psychology — the study of human behaviour at work, including ergonomics, selection procedures, and the effects of stress
- 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.
- peroxymonosulfuric acid — persulfuric acid (def 1).
- pharmaceuticals company — a company specialising in developing and marketing pharmaceuticals
- 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.
- 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).
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.