17-letter words containing h, o, r, e, n, d
- hurler's syndrome — a medical condition characterized by physical deformity and mental deficiency
- hydrogen chloride — a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.
- hydrogen fluoride — a colorless corrosive gas, HF, the anhydride of hydrofluoric acid, used chiefly as a catalyst and in the fluorination of hydrocarbons.
- hydrogen peroxide — a colorless, unstable, oily liquid, H 2 O 2 , an aqueous solution of which is used chiefly as an antiseptic and a bleaching agent.
- hydrogen sulphide — Chemistry
- hydrothermal vent — an opening on the floor of the sea from which hot, mineral-rich solutions issue. Compare vent1 (def 2).
- hydroxytryptamine — (organic compound) Any hydroxy derivative of tryptamine, but especially 5-hydroxytryptamine (serotonin).
- hypodermic needle — a hollow needle used to inject solutions subcutaneously.
- hypophrygian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from B to B, with the final on E.
- icosidodecahedron — A semiregular polyhedron with twelve faces that are regular pentagons and twenty that are equilateral triangles.
- icositetrahedrons — Plural form of icositetrahedron.
- in double harness — in a harness for two animals pulling the same carriage, plow, etc.
- in the background — behind the focus of attention
- in/with regard to — You can use with regard to or in regard to to indicate the subject that is being talked or written about.
- integrated school — (in New Zealand) a private or church school that has joined the state school system
- intermediate host — the host in which a parasite undergoes development but does not reach sexual maturity.
- 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.
- lagrange's method — a procedure for finding maximum and minimum values of a function of several variables when the variables are restricted by additional conditions.
- 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.
- manufactured home — a prefabricated house, assembled in modular sections.
- merchant of death — a company, nation, or person that sells military arms on the international market, usually to the highest bidder and without scruple or regard for political ramifications.
- methylidyne group — the trivalent group ≡CH.
- middle of nowhere — a completely isolated, featureless, or insignificant place
- mies van der rohe — Ludwig [luhd-wig] /ˈlʌd wɪg/ (Show IPA), 1886–1969, U.S. architect, born in Germany.
- modern pentathlon — an athletic contest consisting of five different events: horse riding with jumps, fencing with electric épée, freestyle swimming, pistol shooting, and cross-country running
- montessori method — a system for teaching young children, in which the fundamental aim is self-motivated education by the children themselves, as they are encouraged to move freely through individualized instruction and physical exercises, accompanied by special emphasis on the training of the senses and the early development of reading and writing skills.
- narrow-shouldered — having shoulders which do not extend very far from the neck; not broad-shouldered
- north frigid zone — the part of the earth's surface between the Arctic Circle and the North Pole.
- northern rhodesia — former name of Zambia.
- northern sporades — a group of Greek islands in the Aegean, lying northeast of Euboea
- northern studfish — See under studfish.
- nuclear threshold — the point in war at which a combatant brings nuclear weapons into use
- number three wood — spoon (def 5).
- old norman french — Norman French (sense 1)
- on the barrelhead — upon being presented for sale; at the time of delivery
- on the other hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
- 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.
- 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
- 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)
- san pedro channel — a strait between the mainland of SW California and Santa Catalina Island. About 20 miles (32 km) wide.
- sandringham house — a residence of the royal family, in Sandringham, a village in E England, in Norfolk near the E shore of the Wash