18-letter words containing um
- a piece of crumpet — a sexually desirable woman
- accumulation point — a point such that every neighborhood of the point contains at least one point in a given set other than the given point.
- alumina trihydrate — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- aluminium sulphate — a white crystalline salt used in the paper, textile, and dyeing industries and in the purification of water. Formula: Al2(SO4)3
- aluminum glycinate — a white, bland-tasting powder, C 2 H 6 AlNO 4 , that is used as an antacid.
- aluminum hydroxide — a white powder, Al(OH)3, obtained from bauxite and used to make glass, paper, etc. and in antacids
- ammonium carbamate — a white soluble crystalline compound produced by reaction between dry ammonia and carbon dioxide and used as a nitrogen fertilizer. Formula: (NH4)CO2NH2
- ammonium carbonate — an unstable pungent soluble white powder that is a double salt of ammonium bicarbonate and ammonium carbamate: used in the manufacture of baking powder, smelling salts, and ammonium compounds. Formula: (NH4)HCO3.(NH4)CO2NH2
- ammonium hydroxide — a compound existing only in aqueous solution, formed when ammonia dissolves in water to form ammonium ions and hydroxide ions. Formula: NH4OH
- ammonium phosphate — monoammonium phosphate.
- ammonium purpurate — murexide.
- apprentice plumber — a trainee plumber
- assumption of risk — Assumption of risk is the practice of paying for minor losses yourself, but protecting against catastrophic losses by buying insurance cover.
- ballistic pendulum — a device consisting of a large mass hung from a horizontal bar by two rods, used to measure the velocity of an object, as a bullet, by retaining the object upon impact, its velocity being a function of the displacement of the mass.
- barium thiosulfate — a white, crystalline, water-insoluble, poisonous solid, BaS 2 O 3 ⋅H 2 O, used chiefly in the manufacture of explosives, matches, paints, and varnishes.
- bhumibol adulyadej — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
- bioinstrumentation — the use of instruments, as sensors, to detect and measure certain body functions, as of persons in spaceflight, and transmit the data to a point where it is evaluated
- calcium propionate — a white, water-soluble powder, CaC 6 H 10 O 4 , used in bakery products to inhibit the growth of fungi.
- centum call second — (unit) (CCS) A unit used (in North America) to quantify the total traffic running in a network. 1 CCS is 100 call-seconds. That means 1 CCS could be 2 calls of 50 seconds duration or 20 calls of 5 seconds duration.
- circulating medium — currency serving as a medium of exchange
- circumnavigational — Relating to circumnavigation.
- consumer terrorism — the practice of introducing dangerous substances to foodstuffs or other consumer products, esp to extort money from the manufacturers
- cool as a cucumber — very calm; self-possessed
- costume department — the department in a theatre or television company that is responsible for actors' costumes
- cumberland plateau — division of the W Appalachians, extending from S W.Va. to N Ala.
- cumbrian mountains — a mountain range in NW England, in Cumbria. Highest peak: Scafell Pike, 977 m (3206 ft)
- cumulative scoring — a method of scoring in which the score of a partnership is taken as the sum of their scores on all hands played.
- curriculum council — a council appointed to oversee the development and implementation of a curriculum
- definitive plumage — the plumage of a bird that, once attained, does not change significantly in color or pattern for the rest of the bird's life.
- diazonium compound — any of a series of compounds that contain the group ArN 2 –, in which Ar represents an aryl group.
- dicalcium silicate — a component of cement, 2CaO⋅SiO 2 , also used to neutralize acid soils.
- digital humanities — (used with a singular verb) the study of literature, philosophy, etc., as facilitated by computer technology or digital media: Digital humanities uses data analysis to find patterns in large bodies of text. the set of methodologies used in such scholarship.
- disodium phosphate — sodium phosphate (def 2).
- dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
- ecumenical council — a solemn assembly in the Roman Catholic Church, convoked and presided over by the pope and composed of cardinals, bishops, and certain other prelates whose decrees, when confirmed by the pope, become binding.
- eighty-column mind — (abuse) The sort said to be possessed by persons for whom the transition from punched card to paper tape was traumatic (nobody has dared tell them about disks yet). It is said that these people, including (according to an old joke) the founder of IBM, will be buried "face down, 9-edge first" (the 9-edge being the bottom of the card). This directive is inscribed on IBM's 1402 and 1622 card readers and is referenced in a famous bit of doggerel called "The Last Bug", the climactic lines of which are as follows: He died at the console Of hunger and thirst. Next day he was buried, Face down, 9-edge first. The eighty-column mind is thought by most hackers to dominate IBM's customer base and its thinking. See fear and loathing, card walloper.
- electroluminescent — Having the quality of electroluminescence.
- energy consumption — amount of energy used
- fascicular cambium — cambium that develops within the vascular bundles, producing secondary xylem and phloem.
- fitzwilliam museum — a museum, attached to Cambridge University and founded in 1816, noted esp for its paintings and collections devoted to the applied arts
- five hundred rummy — a variety of rummy in which the winner is the first player to score 500 points.
- frequency spectrum — The frequency spectrum of an electrical signal is the distribution of the amplitudes and phases of each frequency component against frequency.
- fuming nitric acid — a colorless, yellowish, or brownish fuming corrosive liquid, usually prepared from nitric acid by the addition of excess nitrogen dioxide: used in organic synthesis for nitration, and as an oxidizer in liquid propellants for rockets.
- grumbling appendix — a condition in which the appendix causes intermittent pain but appendicitis has not developed
- gum digger's spear — a long steel probe used by gum diggers digging for kauri gum
- human rights group — a group that campaigns for human rights
- hydroflumethiazide — A diuretic drug.
- instrument landing — an aircraft landing accomplished by use of gauges on the instrument panel and ground-based radio equipment, with limited reference to outside visual signals.
- instrument station — station (def 14a).
- jump discontinuity — a discontinuity of a function at a point where the function has finite, but unequal, limits as the independent variable approaches the point from the left and from the right. Compare jump (def 52).
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