16-letter words containing r, a, d, i, o, h
- 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.
- hydrogen cyanide — a colorless poisonous gas, HCN, having a bitter almondlike odor: in aqueous solution it forms hydrocyanic acid.
- hydrostatic head — The hydrostatic head is the vertical height of a column of fluid.
- hydroxylammonium — (inorganic compound) The univalent NH3OH+ cation, derived from hydroxylamine.
- hyperandrogenism — (medicine) An abnormally high production of androgens.
- hyperchlorhydria — excessive secretion of hydrochloric acid in the stomach.
- hyperlipoidaemia — Alt form hyperlipoidemia.
- hyponitrous acid — an unstable, crystalline acid, H 2 N 2 O 2 .
- icositetrahedron — a solid figure having 24 faces.
- irrigation ditch — trench supplying land with water
- judaeo-christian — of or relating to the religious writings, beliefs, values, or traditions held in common by Judaism and Christianity.
- kurdaitcha shoes — (in certain Central Australian Aboriginal tribes) the emu-feather shoes worn by the kurdaitcha on his mission so that his footsteps may not be traced
- 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
- lord howe island — an island in the S Pacific, E of Australia: a dependency of New South Wales. 5 sq. mi. (13 sq. km).
- 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.
- 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
- mothering sunday — Laetare Sunday.
- no hard feelings — If you say ' no hard feelings', you are making an agreement with someone not to be angry or bitter about something.
- norodom sihanouk — Prince Norodom [nawr-uh-dom,, -duh m] /ˈnɔr əˌdɒm,, -dəm/ (Show IPA), 1922–2004, Cambodian statesman: premier 1952–60; chief of state 1960–70 and 1975–76.
- north plainfield — a city in NE New Jersey.
- northern ireland — a political division of the United Kingdom, in the NE part of the island of Ireland. 5238 sq. mi. (13,565 sq. km). Capital: Belfast.
- norwegian buhund — a slightly-built medium-sized dog of a breed with erect pointed ears and a short thick tail carried curled over its back
- nusslein-volhard — Christiane [kris-tee-ah-nuh,, kris-tyah-] /ˌkrɪs tiˈɑ nə,, krɪsˈtyɑ-/ (Show IPA), born 1942, German biologist: Nobel prize 1995.
- off-road vehicle — An off-road vehicle is a vehicle that is designed to travel over rough ground.
- oligosaccharides — Plural form of oligosaccharide.
- on the breadline — impoverished; living at subsistence level
- orographic cloud — any cloud whose existence and form are largely controlled by the disturbed flow of air over and around mountains, as the banner cloud and crest cloud.
- orthodox judaism — Judaism as observed by Orthodox Jews.
- orthoformic acid — a hypothetical acid, HC(OH) 3 , known only in the form of its esters.
- overhead railway — elevated railroad.
- pharmacodynamics — the branch of pharmacology dealing with the course of action, effect, and breakdown of drugs within the body.
- phonocardiograph — an instrument for graphically recording the sound of the heartbeat.
- phosphorous acid — a colorless, crystalline, water-soluble acid of phosphorus, H 3 PO 3 , from which phosphites are derived.
- phytoremediation — a process of decontaminating soil or water by using plants and trees to absorb or break down pollutants.
- pinot chardonnay — Chardonnay.
- pithecanthropoid — of, relating to, or resembling the former genus Pithecanthropus or one of its members.
- pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pyramidal orchid — a chalk-loving orchid, Anacamptis pyramidalis, bearing a dense cone-shaped spike of purplish-pink flowers with a long curved spur
- radio microphone — a microphone incorporating a radio transmitter so that the user can move around freely
- radio-phonograph — a radio and phonograph combined in one unit and sharing some components, as the amplifier and speaker(s)
- radiographically — the production of radiographs.
- redbank whiteoak — a city in S Tennessee.
- residential home — a home with social-work supervision for people who need more than just housing accommodation, such as esp the elderly, and also children in care or mentally handicapped adults
- rhode island red — one of an American breed of chickens having dark reddish-brown feathers and producing brown eggs.
- roundabout chair — corner chair.
- russian orthodox — of or relating to the Russian Orthodox Church
- shakedown cruise — extortion, as by blackmail or threats of violence.