19-letter words containing s, m, o, t, h, d
- (down) in the dumps — in low spirits; depressed
- attachment disorder — an emotional and behavioral disorder arising from a failure to form a strong bond with one’s primary caregiver in early childhood and affecting one’s social relationships in later childhood and adulthood. See also attachment (def 3a).
- bismuth oxychloride — a white, crystalline, water-insoluble powder, BiOCl, used chiefly in the manufacture of pigments, face powders, and artificial pearls.
- brush-tailed possum — any of several widely-distributed Australian possums of the genus Trichosurus
- cathodoluminescence — luminescence caused by irradiation with electrons (cathode rays)
- chamber of deputies — the lower house of the legislature of certain countries, as Italy.
- chassis dynamometer — A chassis dynamometer is a piece of test equipment fitted with rollers for the wheels of a vehicle, that is capable of providing drive input and measuring output such as power and torque at the wheels.
- christian democracy — the beliefs, principles, practices, or programme of a Christian Democratic party
- credit someone with — to believe that someone has or is responsible for; ascribe to someone
- cultivated mushroom — an edible mushroom (Agaricus bisporus) with a pale cap and stalk: the most common food mushroom
- de moivre's theorem — the theorem that a complex number raised to a given positive integral power is equal to the modulus of the number raised to the power and multiplied by the amplitude times the given power.
- death of a salesman — a play (1949) by Arthur Miller.
- desargues's theorem — the theorem that if two triangles are so related that the lines joining corresponding vertices meet in a point, then the extended corresponding lines of the two triangles meet in three points, all on the same line.
- dihydrostreptomycin — an antibiotic, C 21 H 41 N 7 O 12 , derived by organic synthesis from and believed to be less toxic than streptomycin: used in the form of its sulfate chiefly in the treatment of tuberculosis.
- dimethylnitrosamine — a yellow, water-soluble carcinogenic liquid, C 2 H 6 N 2 O, found in tobacco smoke and certain foods: known to be a potent carcinogen. Abbreviation: DMN, DMNA.
- feather-duster worm — any tube-dwelling polychaete worm of the families Sabellidae and Serpulidae, the numerous species having a crown of feathery tentacles used in feeding and respiration.
- freedom of the seas — the doctrine that ships of neutral countries may sail anywhere on the high seas without interference by warring powers.
- grandmother's clock — a pendulum clock similar to a grandfather's clock but shorter.
- handlebar moustache — a man's moustache having long, curved ends that resemble the handlebars of a bicycle.
- harmonic distortion — distortion caused by nonlinear characteristics of electronic apparatus, esp of audio amplifiers, that generate unwanted harmonics of the input frequencies
- hop, step, and jump — triple jump.
- housing development — a group of houses or apartments, usually of the same size and design, often erected on a tract of land by one builder and controlled by one management.
- human rights record — the facts that are known about the tendency of a country, regime, etc, to observe and protect human rights
- hyperparathyroidism — overactivity of the parathyroid gland, characterized by softening of the bones, with consequent pain, tenderness, and a tendency to spontaneous fractures, and by muscular weakness and abdominal cramps.
- in one's right mind — sane
- intermediate school — a school for pupils in grades 4 through 6.
- major seventh chord — a chord much used in modern music, esp jazz and pop, consisting of a major triad with an added major seventh above the root
- manchester autocode — (language, history) The predecessor of Mercury Autocode.
- manchester encoding — (communications, protocol) A method of transmitting bits which enables the receiver to easily synchronise with the sender. A simple way of signalling bits might be to transmit a high voltage for some period for a 1-bit and a low voltage for a 0 bit: Bits Sent: 1 1 0 0 Signal: High ___ Low |___ Time: -> . . . . . However, when several identical bits are sent in succession, this provides no information to the receiver about when each bit starts and stops. Manchester encoding splits each bit period into two, and ensures that there is always a transition between the signal levels in the middle of each bit. This allows the receiver to synchronise with the sender. In normal Manchester encoding, a 1-bit is transmitted with a high voltage in the first period, and a low voltage in the second, and vice verse for the 0 bit: Bits Sent: 1 1 0 0 Signal: High Low || |_| || Time: -> . ' . ' . ' . ' . In Differential Manchester encoding, a 1-bit is indicated by making the first half of the signal equal to the last half of the previous bit's signal and a 0-bit is indicated by making the first half of the signal opposite to the last half of the previous bit's signal. That is, a zero bit is indicated by a transition at the beginning of the bit. Like normal Manchester encoding, there is always a transition in the middle of the transmission of the bit. Differential Manchester Encoding Bits Sent: 1 1 0 0 Signal: High __ Low |_| || || Time: -> . ' . ' . ' . ' . With each bit period half as long, twice as much bandwidth is required when using either of the Manchester encoding schemes.
- master of foxhounds — the person responsible for the conduct of a fox hunt and to whom all members of the hunt and its staff are responsible. Abbreviation: M.F.H.
- metaphosphoric acid — an acid, HPO 3 , derived from phosphorous pentoxide, and containing the smallest amount of water of the phosphoric acids.
- minor seventh chord — a chord consisting of a minor triad with an added minor seventh above the root
- moses-in-the-cradle — a plant, Rhoeo spathacea, native to the West Indies and Central America, having leaves with purple undersides and white flowers enclosed in a boat-shaped envelope formed by two bracts.
- mother-of-thousands — strawberry geranium.
- old man and the sea — a novel (1952) by Ernest Hemingway.
- old spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.
- primitive methodist — a member of a Protestant denomination (Primitive Methodist Church) founded in England in 1812 and later established in the U.S., characterized by its adherence to the basic doctrines, principles, and practices taught by John Wesley.
- pseudohermaphrodite — an individual having internal reproductive organs of one sex and external sexual characteristics resembling those of the other sex or being ambiguous in nature. Compare hermaphrodite (def 1).
- seventh commandment — “Thou shalt not commit adultery”: seventh of the Ten Commandments.
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- sodium hydrosulfite — a white, crystalline, water-soluble powder, Na 2 S 2 O 4 , used as a reducing agent, especially in dyeing, and as a bleach.
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- sodium thiosulphate — a white soluble substance used, in the pentahydrate form, in photography as a fixer to dissolve unchanged silver halides and also to remove excess chlorine from chlorinated water. Formula: Na2S2O3
- standard atmosphere — an arbitrarily determined vertical distribution of atmospheric pressure, temperature, and density, assumed to have physical constants and conforming to parametric equations, used for calculations in ballistics, the design of pressure altimeters, etc.
- stanislavski method — method (def 5).
- strontium hydroxide — a white, slightly water-soluble powder, Sr(OH) 2 , or its crystalline octahydrate (strontium hydrate) used chiefly in the refining of beet sugar.
- the hampshire downs — a range of low chalk hills that crosses Hampshire in S England
- the london assembly — the devolved legislature of London, based in City Hall, Southwark
- thomas of woodstock — Duke of Gloucester, 1355–97, English prince (son of Edward III).
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