21-letter words containing a, c, e, l, u
- lafcadio's adventures — French Les Caves du Vatican. a novel (1914) by André Gide.
- launch control center — any of a number of underground U.S. command facilities prepared to launch land-based missiles in event of war.
- learning difficulties — difficulty experienced in reaching the average standard of people of the same age group as regards intellectual and cognitive skills and performance
- least common multiple — lowest common multiple.
- leave sb in the lurch — If someone leaves you in the lurch, they go away or stop helping you at a very difficult time.
- line of communication — a means by which information may be transmitted from one person to another
- logic design language — (language) A language for computer design.
- lucius annaeus seneca — Lucius Annaeus [uh-nee-uh s] /əˌni əs/ (Show IPA), c4 b.c.–a.d. 65, Roman philosopher and writer of tragedies.
- luck was on sb's side — If you say that luck was on someone's side, you mean that they succeeded in something by chance as well as by their own efforts or ability.
- macgillicuddy's reeks — a mountain range in County Kerry, SW Ireland. Highest peak (also highest in Ireland), Carrantuohill, 3414 feet (1041 meters).
- magnesium trisilicate — a white, fine, odorless and tasteless powder, Mg 2 O 8 Si 3 ⋅nH 2 O, used industrially to absorb odors and decolorize and pharmaceutically as an antacid.
- magnetic flux density — Also called magnetic flux density. a vector quantity used as a measure of a magnetic field. Symbol: B.
- magnetofluid dynamics — magnetohydrodynamics.
- make a policy paid up — If you make a policy paid up, you stop making premium payments into a life policy but still leave the coverage in place.
- management consultant — A management consultant is someone whose job is to advise companies on the most efficient ways to run their business.
- marketable securities — Marketable securities are securities that can easily be sold quickly on the open market.
- mechanical instrument — a musical instrument, such as a barrel organ or music box, that plays a preselected piece of music by mechanical means
- mechanical metallurgy — the branch of metallurgy dealing with the response of metals to applied forces.
- mechanical suspension — the act of suspending.
- medical jurisprudence — forensic medicine.
- medium access control — Media Access Control
- modulus of elasticity — the ratio of the stress applied to a body or substance to the resulting strain within the elastic limit
- mother-of-pearl cloud — nacreous cloud.
- mucopolysaccharidoses — Plural form of mucopolysaccharidosis.
- multichannel analyser — an electronic instrument, such as a pulse height analyser, that splits an input waveform into a large number of channels in accordance with a particular parameter of the input
- multilayer perceptron — A network composed of more than one layer of neurons, with some or all of the outputs of each layer connected to one or more of the inputs of another layer. The first layer is called the input layer, the last one is the output layer, and in between there may be one or more hidden layers.
- muon-catalysed fusion — an experimental form of nuclear fusion in which hydrogen and deuterium muonic atoms are formed. Because the mass of the muon is much larger than that of the electron, the atoms are smaller, and the nuclei are close enough for fusion to occur
- narrow-angle glaucoma — Ophthalmology. angle-closure glaucoma. See under glaucoma.
- negotiable securities — securities that are legally transferable in title from one party to another
- new general catalogue — NGC.
- noncustodial sentence — a punishment given by a court of law that does not involve a prison term, such as a fine or a restriction order
- nonrestrictive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
- nuclear cross section — cross section (def 7).
- nuclear power station — a station or plant where nuclear energy is converted into heat, electricity, etc
- oblique circular cone — a cone whose surface is generated by lines joining a fixed point to the points of a circle, the fixed point lying on a line that is not perpendicular to the circle at its center.
- occupational guidance — advice and guidance relating to employment issues and career choices
- optical double (star) — double star (sense 2)
- packed encoding rules — (protocol, standard) (PER) ASN.1 encoding rules for producing a compact transfer syntax for data structures described in ASN.1, defined in 1994. PER provides a much more compact encoding then BER. It tries to represents the data units using the minimum number of bits. The compactness requires that the decoder knows the complete abstract syntax of the data structure to be decoded, however. Documents: ITU-T X.691, ISO 8825-2.
- peroxydisulfuric acid — persulfuric acid (def 2).
- phrase-structure rule — a rule that generates a sentence or other syntactic construction from words and phrases and identifies its constituent structure.
- picture quality scale — (graphics) (PQS) A system for rating image quality based upon features of images that affect their perception by the human eye, rather than the traditional signal-to-noise ratio which examines differences for every single pixel.
- pipelined burst cache — Pipeline Burst Cache
- place of articulation — the location at which two speech organs approach or come together in producing a speech sound, as in the contact of the tongue and the teeth to form a dental sound. Also called point of articulation. Compare articulator (def 2).
- plate glass insurance — Plate glass insurance is insurance coverage against damage to or breakage of large panes of glass such as shop windows.
- play with a full deck — Nautical. a floorlike surface wholly or partially occupying one level of a hull, superstructure, or deckhouse, generally cambered, and often serving as a member for strengthening the structure of a vessel. the space between such a surface and the next such surface above: Our stateroom was on B deck.
- pneumoencephalography — encephalography.
- premature ejaculation — a male psychosexual disorder in which ejaculation occurs soon after the commencement of sexual intercourse.
- pressure-vacuum valve — a valve for relieving a sealed tank of any pressure or vacuum exceeding acceptable limits.
- prince rupert's metal — a brass composed of from about 60 to 85 percent copper and about 15 to 40 percent zinc, used to imitate gold.
- public address system — loudspeaker