16-letter words containing a, d, h, r, m
- gynandromorphous — an individual exhibiting morphological characteristics of both sexes.
- hamadryas baboon — a baboon, Papio (Comopithecus) hamadryas, of Ethiopia, the male of which has a mantle of long, dark hair about the head and shoulders: held sacred by the ancient Egyptians.
- hammer and tongs — with great vigor, determination, or vehemence: When he starts a job he goes at it hammer and tongs.
- hamming, richard — Richard Hamming
- hand screw clamp — a screw that can be tightened by the fingers, without the aid of a tool.
- hard rock mining — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- hard times token — any of a series of U.S. copper tokens, issued 1834–41, bearing a political inscription or advertising message and serving as currency during coin shortages.
- have a hard time — experience difficulties
- head arrangement — a roughly outlined musical arrangement that is played from memory and is often learned by ear.
- head normal form — (theory, reduction) (HNF) A term describing a lambda expression whose top level is either a variable, a data value, a built-in function applied to too few arguments, or a lambda abstraction whose body is not reducible. I.e. the top level is neither a redex nor a lambda abstraction with a reducible body. An expression in HNF may contain redexes in argument postions whereas a normal form may not. Compare Weak Head Normal Form.
- headhunting firm — a recruiting agency
- headmistressship — (rare) Alternative form of headmistress-ship.
- hearing-impaired — having reduced or deficient hearing ability; hard-of-hearing: special programs for hearing-impaired persons.
- hermaphroditical — Alternative form of hermaphroditic.
- heteropalindrome — Something that spells something else when reversed, a semordnilap.
- himachal pradesh — a state in N India. 21,495 sq. mi. (55,673 sq. km). Capital: Shimla.
- hodmezovasarhely — a city in SE Hungary.
- homme d'affaires — a businessman.
- hookworm disease — any of certain bloodsucking nematode worms, as Ancylostoma duodenale and Necator americanus, parasitic in the intestine of humans and other animals.
- hyaloid membrane — the delicate, pellucid, and nearly structureless membrane enclosing the vitreous humor of the eye.
- hydrated alumina — 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.
- hydration number — the number of molecules of water with which an ion can combine in an aqueous solution of given concentration.
- hydraulic cement — cement that can solidify under water.
- hydraulic mining — placer mining using a pressurized stream of water.
- hydrobromic acid — a colorless or faintly yellow corrosive liquid, HBr, an aqueous solution of hydrogen bromide.
- hydroformylation — the addition of a hydrogen atom and the formyl group to a double bond of a hydrocarbon by reaction with a mixture of carbon monoxide and hydrogen in the presence of a catalyst.
- hydroxylammonium — (inorganic compound) The univalent NH3OH+ cation, derived from hydroxylamine.
- hyperandrogenism — (medicine) An abnormally high production of androgens.
- hyperlipoidaemia — Alt form hyperlipoidemia.
- j. random hacker — (jargon) /J rand'm hak'r/ MIT jargon for a mythical figure; the archetypal hacker nerd. This may originally have been inspired by "J. Fred Muggs", a show-biz chimpanzee whose name was a household word back in the early days of TMRC, and was probably influenced by J. Presper Eckert (one of the co-inventors of the electronic computer). See random, Suzie COBOL.
- leasehold reform — reform of the law relating to leasehold property
- limited monarchy — a monarchy that is limited by laws and a constitution.
- limited-monarchy — a limited train, bus, etc.
- lord chamberlain — (in Britain) the chief official of the royal household
- machine readable — of or relating to data encoded on an appropriate medium and in a form suitable for processing by computer.
- machine-readable — of or relating to data encoded on an appropriate medium and in a form suitable for processing by computer.
- mail-order house — a retail firm that conducts its business by receiving orders and shipping its merchandise through the mail and that supplies its customers with catalogs, circulars, etc.
- maleic anhydride — a colorless crystalline, unsaturated compound, C 4 H 2 O 3 , that is soluble in acetone and hydrolyzes in water: used in the production of polyester resins, pesticides, and fumaric and tartaric acids.
- maleic hydrazide — a crystalline compound, C 4 N 2 H 4 O 2 , used as a plant growth inhibitor and weed-killer.
- man of the world — a man who is widely experienced in the ways of the world and people; an urbane, sophisticated man.
- mandarin chinese — the official language of China since 1917; the form of Chinese spoken by about two thirds of the population and taught in schools throughout China
- manhood suffrage — the right of adult male citizens to vote
- maremma sheepdog — a large strongly-built sheepdog of a breed with a long, slightly wavy, white coat
- marshall islands — a republic, consisting of a group of 34 coral islands in the W central Pacific: formerly part of the Trust Territory of the Pacific Islands (1947–87); status of free association with the US from 1986; consists of two parallel chains, Ralik and Ratak. Official languages: Marshallese and English. Religion: Roman Catholic majority. Currency: US dollar. Capital: Delap-Uliga-Djarrit, on Majuro atoll. Pop: 69 747 (2013 est). Area: (land) 181 sq km (70 sq miles); (lagoon) 11 655 sq km (4500 sq miles)
- marshalling yard — a place or depot where railway wagons are shunted and made up into trains and where engines, carriages, etc, are kept when not in use
- matthew flinders — Matthew, 1774–1814, English navigator and explorer: surveyed coast of Australia.
- medieval cornish — the Cornish language of the Middle Ages, usually dated from the 14th century to 1600.
- medieval history — the branch of history dealing with the Middle Ages
- medullary sheath — Botany. a narrow zone made up of the innermost layer of woody tissue immediately surrounding the pith in plants.
- methacrylic acid — a colorless, liquid acid, C 4 H 6 O 2 , produced synthetically, whose methyl ester, methyl methacrylate, polymerizes to yield a clear plastic.