21-letter words containing a, s, m, l
- coronal mass ejection — a cloud of particles ejected from the sun's surface during a solar flare
- cosmological argument — one of the arguments that purport to prove the existence of God from empirical facts about the universe, esp the argument to the existence of a first cause
- cosmological constant — a term introduced by Einstein into his field equations of general relativity to permit a stationary, nonexpanding universe: it has since been abandoned in most models of the universe.
- cosmological redshift — the part of the redshift of celestial objects resulting from the expansion of the universe.
- countably compact set — a set for which every cover consisting of a countable number of sets has a subcover consisting of a finite number of sets.
- court of common pleas — (formerly) a superior court exercising jurisdiction in civil actions between private citizens
- criminal conversation — (formerly) a common law action brought by a husband by which he claimed damages against an adulterer
- croscarmellose sodium — Croscarmellose sodium is a substance used in tablets and capsules as a disintegrant.
- dark-field microscope — ultramicroscope
- democratic centralism — the Leninist principle that policy should be decided centrally by officials, who are nominally democratically elected
- denominational school — a school associated with a particular religious denomination
- designated employment — (in Britain) any of certain kinds of jobs reserved for handicapped workers under the Disabled Persons (Employment) Act 1944
- diapason normal pitch — a standard of pitch in which A above middle C is established at 435 vibrations per second.
- disestablishmentarian — a person who favors the separation of church and state, especially the withdrawal of special rights, status, and support granted an established church by a state; an advocate of disestablishing a state church.
- displacement activity — a behavior performed out of its usual context and apparently irrelevant to the prevailing situation, as eating when an unknown individual approaches, tending to occur when appropiate behaviors, as attacking or fleeing, are in conflict or obstructed.
- display advertisement — an advertisement designed to attract attention by using devices such as conspicuous or elegant typefaces, graphics, etc
- distributed smalltalk — ["The Design and Implementation of Distributed Smalltalk", J. Bennett, SIGPLAN Notices 22(12):318-330 (Dec 1980)].
- drop in someone's lap — give someone the responsibility of
- dumfries and galloway — a region in S Scotland. 2460 sq. mi. (6371 sq. km).
- eastern daylight time — a time zone applicable to many eastern areas of the United States during the summer months, being a daylight-saving variant of Eastern Standard Time
- electric displacement — the electric flux density when an electric field exists in free space into which a dielectric is introduced
- electroencephalograms — Plural form of electroencephalogram.
- electromagnetic pulse — a surge of electromagnetic radiation, esp one resulting from a nuclear explosion, which can disrupt electronic devices and, occasionally, larger structures and equipment
- electronystagmography — A diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus. It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.
- emotional correctness — pressure on an individual to be seen to feel the same emotion as others
- empire state building — New York City skyscraper
- endoplasmic reticulum — an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins
- environmental studies — a university course studying the environment and related issues
- epidemic encephalitis — any type of widespread encephalitis caused by various viruses
- epidermolysis bullosa — type of genetic skin disorder
- false memory syndrome — a psychological condition in which a person believes that he or she remembers events that have not actually occurred.
- false-memory syndrome — a psychological condition in which a person believes that he or she remembers events that have not actually occurred.
- feline leukemia virus — a retrovirus, mainly affecting cats, that depresses the immune system and leads to opportunistic infections, lymphosarcoma, and other disorders. Abbreviation: FeLV, FLV.
- fermat's last theorem — the unproved theorem that the equation xn + yn = zn has no solution for x, y, z nonzero integers when n is greater than 2.
- ferric sodium oxalate — an emerald-green, crystalline, extremely water-soluble salt, used in photography and blueprinting.
- financial times index — one of the indexes of share prices produced by the Financial Times, especially the Financial Times Stock Exchange 100 Index
- fort lesley j. mcnair — a military reservation in SW Washington, D.C., on the Potomac River, SW of the Capitol.
- franco-belgian system — French system.
- fuming sulphuric acid — a mixture of pyrosulphuric acid, H2S2O7, and other condensed acids, made by dissolving sulphur trioxide in concentrated sulphuric acid
- general of the armies — a special rank held by John J. Pershing, equivalent to general of the army.
- gentleman's agreement — unwritten rule or agreement
- gentleman's gentleman — a valet.
- gentlemen's agreement — an agreement that, although unenforceable at law, is binding as a matter of personal honor.
- give place to someone — to make room for or be superseded by someone
- give someone a leg up — to help someone to climb an obstacle by pushing upwards
- give someone a tinkle — to call someone on the telephone
- grease someone's palm — the part of the inner surface of the hand that extends from the wrist to the bases of the fingers.
- henry steele commager — Henry Steele, 1902–98, U.S. historian, author, and teacher.
- hindu-arabic numerals — Arabic numeral.
- homogeneous catalysis — Homogeneous catalysis is catalysis in which the catalyst takes part in the reaction that it increases.