18-letter words containing h, u, m
- a month of sundays — a long unspecified period
- accounting machine — a machine for performing bookkeeping functions, as arithmetic operations or vertical and horizontal tabulations.
- actual bodily harm — Actual bodily harm is a criminal offence in which someone gives another person a minor injury.
- ahead of your time — If someone is ahead of their time or before their time, they have new ideas a long time before other people start to think in the same way.
- ailanthus silkworm — a green silkworm, Samia walkeri, introduced into the U.S. from China, that feeds on the leaves of the ailanthus.
- 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 hydroxide — a white powder, Al(OH)3, obtained from bauxite and used to make glass, paper, etc. and in antacids
- 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.
- anthropomorphously — In an anthropomorphous manner; in a manner resembling that of a human.
- at the last minute — almost too late
- autonomous phoneme — a phoneme that is defined or determined by its contrast in sound with other phonemes, without reference to its role in morphology or any other level of linguistic analysis beyond the phonetic level.
- 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.
- beefsteak mushroom — an edible bracket fungus, Fistulina hepatica, that grows on trees and can rot the heartwood of living oaks and chestnuts.
- bhumibol adulyadej — (Phumiphon Aduldet; Bhumibol Adulyadej) born 1927, king of Thailand since 1946.
- bolt from the blue — If a piece of news comes like a bolt from the blue, it is completely unexpected and very surprising.
- burkitt's lymphoma — a cancer characterized by tumors containing lymphoid cells, occurring esp. in children, in the jaw, eyes, and internal organs: it is associated with the Epstein-Barr virus
- burst at the seams — to break, break open, or fly apart with sudden violence: The bitter cold caused the pipes to burst.
- camel's-hair brush — an artist's small brush, made of hair from a squirrel's tail
- capital punishment — Capital punishment is punishment which involves the legal killing of a person who has committed a serious crime such as murder.
- chambered nautilus — nautilus (def 1).
- charismatic church — a church that emphasizes communal prayer and the charismatic gifts of speaking in tongues, healing, etc
- chukchi-kamchatkan — Chukotian.
- circular dichroism — selective absorption of one of the two possible circular polarizations of light.
- combustion chamber — an enclosed space in which combustion takes place, such as the space above the piston in the cylinder head of an internal-combustion engine or the chambers in a gas turbine or rocket engine in which fuel and oxidant burn
- common-law husband — a man considered to be a woman's husband after the couple have cohabited for several years
- community hospital — (in the US) a local hospital
- computer telephony — Computer Telephone Integration
- considered harmful — (programming, humour) A type of phrase based on the title of Edsger W. Dijkstra's famous note in the March 1968 Communications of the ACM, "Goto Statement Considered Harmful", which fired the first salvo in the structured programming wars. Amusingly, the ACM considered the resulting acrimony sufficiently harmful that it will (by policy) no longer print articles taking so assertive a position against a coding practice. In the ensuing decades, a large number of both serious papers and parodies bore titles of the form "X considered Y". The structured-programming wars eventually blew over with the realisation that both sides were wrong, but use of such titles has remained as a persistent minor in-joke.
- cunninghame graham — R(obert) B(ontine). 1852–1936, Scottish traveller, writer, and politician, noted for his essays and short stories: first president (1928) of the Scottish Nationalist Party
- cushing's syndrome — a medical condition characterized by obesity, hypertension, excessive hair growth, etc., caused by an overactive adrenal gland or large doses of corticosteroids
- dermot macmurrough — ?1110–71, king of Leinster, who, by enlisting the support of the English to win back his kingdom, was responsible for the English conquest of Ireland
- destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
- diatomaceous earth — an unconsolidated form of diatomite
- 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.
- dimethyl sulfoxide — DMSO.
- dimethylsulphoxide — a colourless odourless liquid substance used as a solvent and in medicine as an agent to improve the penetration of drugs applied to the skin. Formula: (CH3)2SO
- diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
- disodium phosphate — sodium phosphate (def 2).
- dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
- double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
- drug on the market — Pharmacology. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being.
- 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.
- ethnomusicological — Relating to or pertaining to ethnomusicology.
- euclid's algorithm — (algorithm) (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
- executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
- five hundred rummy — a variety of rummy in which the winner is the first player to score 500 points.
- fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
- fourth normal form — database normalisation
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