21-letter words containing s, e, l, c, t
- loch ness monster bug — (humour) (Or "Bugfoot") A bug which cannot be reproduced or has only been sighted by one person. Named after the mythical creature claimed to inhabit Loch Ness in Scotland.
- macintosh file system — (file system) A file on the Macintosh consists of two parts, called forks. The "data fork" contains the data which would normally be stored in the file on other operating systems. The "resource fork" contains a collection of arbitrary attribute/value pairs, including program segments, icon bitmaps, and parametric values. Yet more information regarding Macintosh files is stored by the Finder in a hidden file, called the "Desktop Database". Because of the complications in storing different parts of a Macintosh file in non-Macintosh file systems that only handle consecutive data in one part, it is common to only send the Data fork or to convert the Macintosh file into some other format before transferring it.
- 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.
- magnetoplasmadynamics — magnetohydrodynamics.
- main-topsail schooner — a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark.
- 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 solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
- medium access control — Media Access Control
- megaloblastic anaemia — any anaemia, esp pernicious anaemia, characterized by the presence of megaloblasts in the blood or bone marrow
- megaspore mother cell — a diploid cell in plants that undergoes meiosis to create four haploid megaspores.
- meter-kilogram-second — of or relating to the system of units in which the meter, kilogram, and second are the principal units of length, mass, and time. Abbreviation: mks, MKS.
- metropolitan district — any of the districts making up the metropolitan counties of England: since 1986 they have functioned as unitary authorities, forming the sole principal tier of local government. Each metropolitan district has an elected council responsible for education, social services, etc
- modulus of elasticity — the ratio of the stress applied to a body or substance to the resulting strain within the elastic limit
- motivational research — the application of the knowledge and techniques of the social sciences, especially psychology and sociology, to understanding consumer attitudes and behavior: used as a guide in advertising and marketing.
- 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
- 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
- national park service — a division of the Department of the Interior, created in 1916, that administers national parks, monuments, historic sites, and recreational areas.
- negotiable securities — securities that are legally transferable in title from one party to another
- night-blooming cereus — any of various cacti of the genera Hylocereus, Peniocereus, Nyctocereus, or Selenicereus, having large, usually white flowers that open at night.
- 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.
- nonviolent resistance — passive resistance, peaceful protest
- nuclear cross section — cross section (def 7).
- nuclear power station — a station or plant where nuclear energy is converted into heat, electricity, etc
- old spanish practices — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- operational semantics — (theory) A set of rules specifying how the state of an actual or hypothetical computer changes while executing a program. The overall state is typically divided into a number of components, e.g. stack, heap, registers etc. Each rule specifies certain preconditions on the contents of some components and their new contents after the application of the rule. It is similar in spirit to the notion of a Turing machine, in which actions are precisely described in a mathematical way. Compuare axiomatic semantics, denotational semantics.
- optical double (star) — double star (sense 2)
- person-to-person call — a call to a specified person; if that person cannot take the call there is no charge
- 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.
- piezoelectric crystal — a crystal, such as quartz, that produces a potential difference across its opposite faces when under mechanical stress
- pipelined burst cache — Pipeline Burst Cache
- place of safety order — (in Britain) under the Children and Young Persons Act 1969, an order granted by a justice to a person or agency granting authority to detain a child or young person and take him or her to a place of safety for not more than 28 days, because of the child's actual or likely ill-treatment or neglect, etc
- plate glass insurance — Plate glass insurance is insurance coverage against damage to or breakage of large panes of glass such as shop windows.
- political correctness — Political correctness is the attitude or policy of being extremely careful not to offend or upset any group of people in society who have a disadvantage, or who have been treated differently because of their sex, race, or disability.
- portable common loops — (PCL) A language which started out as an implementation of CommonLoops and turned into a portable CLOS implementation. Version 1992-08-28. It runs under Lucid Common LISP 4.0.1 and CMU Common LISP 16e.
- prefect of discipline — a senior master in a Jesuit school or college
- 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.
- processor direct slot — (hardware) (PDS) Apple Computer's name for a local bus connection. Most Macintoshes have only one PDS connector. Different Apple computers have different PDS specifications.
- projection television — a television picture display system consisting of a special receiver and an optical system that projects an enlarged picture on a screen.
- pseudo-cleft sentence — cleft sentence (def 2).
- public address system — loudspeaker
- public health service — the agency that is responsible for the health of the general public
- public-address system — a combination of electronic devices that makes sound audible via loudspeakers to many people, as in an auditorium or out of doors.
- pulse code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.
- pulse-code modulation — a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer. Abbreviation: PCM.