21-letter words containing s, u, n, d
- saint-maur-des-fosses — a town in N central France, near Paris, on the Marne River.
- sampling distribution — the distribution of a statistic based on all possible random samples that can be drawn from a given population.
- santo tome de guayana — a city in NE Venezuela, on the Orinoco River.
- school superintendent — an official whose job is to oversee school administration within a district
- sedimentary sequences — Sedimentary sequences are layers of rock which are derived from weathered rocks, biogenic (= of living organisms) activity, or precipitation from solution.
- shams ud-din mohammed — (Shams ud-din Mohammed) c1320–89? Persian poet.
- silicon tetrafluoride — a colorless, fuming gas, SiF 4 , used chiefly in the manufacture of fluosilicic acid.
- sing a different tune — a succession of musical sounds forming an air or melody, with or without the harmony accompanying it.
- sinusoidal projection — an equal-area projection in which parallels are straight lines spaced at regular intervals, the central meridian is a straight line one-half the length of the equator, and the other meridians are curves symmetrical to the central meridian.
- snr bandwidth product — (communications) The integral of the SNR over frequency. The SNR bandwidth product is an important limit in the capacity of a communication channel.
- someone's name is mud — someone is disgraced
- sovereign wealth fund — an investment fund created using the financial assets of a national government
- statutory declaration — a declaration made under statutory authority before a justice of the peace or commissioner for oaths which may in certain cases be substituted for a statement on oath
- steady state universe — a universe described by the steady state theory.
- student participation — the extent to which students participate or involve themselves in a class, course, etc
- submerged arc welding — a type of heavy electric-arc welding using mechanically fed bare wire with the arc submerged in powdered flux to keep out oxygen
- suction and curettage — a technique involving extraction of the fetus through a suction tube, used to perform abortions during the early stages of pregnancy.
- sunday school teacher — someone who teaches at a Sunday school
- supply-side economics — a school of economic thought that emphasizes the importance to a strong economy of policies that remove impediments to supply
- surface friction drag — the part of the drag on a body moving through a fluid that is dependent on the nature of the surface of the body
- surface-to-underwater — (of a missile, message, etc.) traveling from the surface of the earth to a target underwater.
- take under advisement — to consider carefully
- the san andreas fault — a geological fault in California
- the slough of despond — a state of extreme despondency, depression or degradation
- the student community — the body of students in further and higher education, considered as a whole
- think outside the box — to think in a different, innovative, or original manner, esp with regard to business practices, products, systems, etc
- third-party insurance — insurance that compensates for a loss to a party other than the insured for which the insured is liable.
- time and motion study — the systematic investigation and analysis of the motions and the time required to perform a specific operation or task with a view to seeking more efficient methods of production as well as setting time standards.
- to be hard luck on sb — to be unfortunate or unlucky for someone
- to be mixed up in sth — if you are mixed up in something, usually something bad, you are involved in it
- to put the wind up sb — If something or someone puts the wind up you, they frighten or worry you.
- to stick in your mind — If something sticks in your mind, it remains firmly in your memory.
- trades union congress — The Trades Union Congress in Britain is the same as the TUC.
- transcendental number — a number that is not a root of any algebraic equation having integral coefficients, as π or e .
- turn queen's evidence — (of an accomplice) to act as witness for the prosecution and testify against those associated with him or her in crime
- turn state's evidence — If someone who is accused of a crime turns state's evidence, they agree to give evidence in a law court against another person such as a former accomplice, usually in exchange for a reduced sentence for themselves.
- under one's own steam — If you do something under your own steam, you do it without any help from anyone else.
- undesirable discharge — a discharge under other than honorable conditions of a person from military service by administrative action.
- universal disk format — (storage, standard) (UDF) A CD-ROM file system standard that is required for DVD ROMs. UDF is the OSTA's replacement for the ISO 9660 file system used on CD-ROMs, but will be mostly used on DVD. DVD multimedia disks use UDF to contain MPEG audio and video streams. To read DVDs you need a DVD drive, the kernel driver for the drive, MPEG video support, and a UDF driver. DVDs containing both UDF filesystems and ISO 9660 filesystems can be read without UDF support. UDF can also be used by CD-R and CD-RW recorders in packet writing mode.
- universe of discourse — the totality of known or supposed objects and phenomena throughout space; the cosmos; macrocosm.
- university of iceland — (body, education) The Home of Fjolnir.
- up close and personal — face to face, intimately
- vasco nunez de balboa — Vasco Núñez de [bahs-kaw noo-nyeth th e] /ˈbɑs kɔ ˈnu nyɛθ ðɛ/ (Show IPA), 1475?–1517, Spanish adventurer and explorer who discovered the Pacific Ocean in 1513.
- ventriloquist's dummy — a puppet which is operated by a ventriloquist and made to appear to talk
- when the dust settles — If you say that something will happen when the dust settles, you mean that a situation will be clearer after it has calmed down. If you let the dust settle before doing something, you let a situation calm down before you try to do anything else.
- xeroderma pigmentosum — a rare inherited disease characterized by sensitivity to ultraviolet light, exposure resulting in lesions and tumors of the skin and eyes.