17-letter words containing h, a, r, d, i, n
- isherwood framing — a system for framing steel vessels in which light, closely spaced, longitudinal frames are connected by heavy, widely spaced transverse frames with deep webs.
- italian greyhound — one of an Italian breed of toy dogs resembling a greyhound.
- jammu and kashmir — official name of Kashmir (def 2).
- lanthanide series — the series of rare-earth elements of atomic numbers 57 through 71 (lanthanum through lutetium).
- life and/or death — If you say that something is a matter of life and death, you are emphasizing that it is extremely important, often because someone may die or suffer great harm if people do not act immediately.
- martha's vineyard — an island off SE Massachusetts: summer resort. About 100 sq. mi. (259 sq. km).
- mass merchandiser — a retailer or retail store that seeks to sell large quantities of goods quickly through such means as discounting, customer self-service, or unadorned display and packaging, as in a warehouse.
- mechanical digger — a machine used for excavation
- mies van der rohe — Ludwig [luhd-wig] /ˈlʌd wɪg/ (Show IPA), 1886–1969, U.S. architect, born in Germany.
- mitochondrial dna — DNA found in mitochondria, which contains some structural genes and is generally inherited only through the female line
- nitroxanthic acid — picric acid.
- northern rhodesia — former name of Zambia.
- old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
- old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
- orthovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts. Formula: H3VO4
- overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
- parathyroid gland — any of several small oval glands usually lying near or embedded in the thyroid gland.
- perth and kinross — a council area of N central Scotland, corresponding mainly to the historical counties of Perthshire and Kinross-shire: part of Tayside Region from 1975 until 1996: chiefly mountainous, with agriculture, tourism, and forestry. Administrative centre: Perth. Pop: 135 990 (2003 est). Area: 5321 sq km (2019 sq miles)
- phenylformic acid — benzoic acid.
- platinic chloride — chloroplatinic acid.
- prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
- prusso-danish war — a war of 1864 between Prussia and Denmark by which Denmark lost Schleswig-Holstein.
- pull your head in — be quiet!
- quick on the draw — having fast reflexes
- radiation therapy — x-rays used as treatment
- radio in the loop — Wireless Local Loop
- receding forehead — a forehead which slopes backwards
- receding hairline — hair that is thinning at the front
- rhode island bent — a European pasture grass, Agrostis tenuis, naturalized in North America, having red flower clusters.
- rhodope mountains — a mountain range in SE Europe, in the Balkan Peninsula extending along the border between Bulgaria and Greece. Highest peak: Golyam Perelik (Bulgaria), 2191 m (7188 ft)
- right in the head — sane
- russian wolfhound — borzoi.
- sandringham house — a residence of the royal family, in Sandringham, a village in E England, in Norfolk near the E shore of the Wash
- sinbad the sailor — a merchant in The Arabian Nights who makes seven adventurous voyages
- sir arthur harden — Sir Arthur, 1865–1940, English biochemist: Nobel Prize 1929.
- smarandache logic — neutrosophic logic
- south farmingdale — a town on central Long Island, in SE New York.
- southern rhodesia — a former name (until 1964) of Zimbabwe (def 1).
- spiny-headed worm — any of a small group of endoparasites of the phylum Acanthocephala, as larvae parasitic in insects and crustaceans and as adults in various vertebrates.
- stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
- straw in the wind — If you say that an incident or piece of news is a straw in the wind, you mean that it gives an indication of what might happen in the future.
- stymphalian birds — a flock of predacious birds of Arcadia that were driven away and killed by Hercules as one of his labors.
- teacher education — training to become a teacher, usually at an institution of higher education
- technical drawing — the study and practice, esp as a subject taught in school, of the basic techniques of draughtsmanship, as employed in mechanical drawing, architecture, etc
- the confederation — the original 13 states of the United States of America constituted under the Articles of Confederation and superseded by the more formal union established in 1789
- the faint-hearted — people of a nervous disposition
- the silken ladder — a one-act opera by Rossini, telling the story of Giulia, who is secretly married to Dorvil; he visits her bedroom every night by climbing up a ladder made of silk. Giulia's guardian, Dormont, expects her to marry Blansac, but she introduces Blansac to her cousin Lucilla; after much confusion, the two couples are joyfully united
- therapeutic index — the ratio between the dosage of a drug that causes a lethal effect and the dosage that causes a therapeutic effect.
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- thermal radiation — electromagnetic radiation emitted by all matter above a temperature of absolute zero because of the thermal motion of atomic particles.