15-letter words containing h, r, d, i, a
- (at) first hand — from the original source; directly
- acetyl chloride — a colourless pungent liquid used as an acetylating agent. Formula: CH3COCl
- active hydrogen — hydrogen in the form of single atoms, rather than molecules, which makes it extremely reactive.
- adhesive factor — the ratio of the force that can be exerted on driving wheels with full traction to the weight on the driving wheels, usually expressed as a percentage.
- adiabatic chart — a graph for the analysis of adiabatic processes.
- admiralty cloth — melton cloth, used for coats and jackets, especially for the naval service.
- admiralty house — the official residence of the Governor General of Australia, in Sydney
- adrenaline rush — a feeling of excitement, stimulation and enhanced physical ability produced when the body secretes large amounts of adrenaline in response to a sudden perceived or induced stress situation
- advanced higher — the highest level of qualification offered within the school system, replacing the former Certificate of Sixth Year Studies
- ah, wilderness! — a comedy (1933) by Eugene O'Neill.
- al iskandariyah — Alexandria , Egypt
- al-iskandariyah — Arabic name of Alexandria.
- alfred e. smith — Adam, 1723–90, Scottish economist.
- all-wheel drive — a system used in motor vehicles in which all four (or more) wheels are permanently connected to the source of power, in such a way that each wheel is able to rotate at a different speed
- almighty dollar — money regarded as a major goal in life or as the basis of power: Love of the almighty dollar has ruined many people.
- alpha radiation — alpha particles emitted from a radioactive isotope
- ambassadorships — Plural form of ambassadorship.
- amphiarthrodial — a joint permitting only slight motion, as that between the vertebrae.
- andrographolide — (organic compound) A bitter labdane diterpenoid that is the main bioactive component of the medicinal plant Andrographis paniculata, effective against certain cancers.
- antiaphrodisiac — something that represses sexual desire
- aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
- arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
- archibald prize — an annual prize awarded by the Trustees of the Art Gallery of New South Wales since 1921, for outstanding contributions to art, letters, science, and politics
- auf wiedersehen — goodbye, until we see each other again
- autoradiographs — Plural form of autoradiograph.
- autoradiography — the technique or process of making autoradiographs.
- banner headline — A banner headline is a large headline in a newspaper that stretches across the front page.
- barium chloride — a poisonous compound, BaCl2, consisting of flat white crystals that are soluble in water: it is used to treat water, metals, leather, etc.
- barley sandwich — a drink of beer, esp at lunch time
- basic anhydride — a compound formed by removing water from a more complex compound: an oxide of a nonmetal (acid anhydride) or a metal (basic anhydride) that forms an acid or a base, respectively, when united with water.
- bathurst island — an island off the coast of N Nunavut, Canada, in the Arctic Archipelago: present south of the North Magnetic Pole nearby. 7609 sq. mi. (19,707 sq. km).
- benzal chloride — a colorless, oily liquid, C 7 H 6 Cl 2 , used chiefly in the synthesis of benzaldehyde, and in the manufacture of dyes.
- beside the mark — not striking the point aimed at
- birch partridge — ruffed grouse
- boarding school — A boarding school is a school which some or all of the pupils live in during the school term. Compare day school.
- brights-disease — a disease characterized by albuminuria and heightened blood pressure.
- bring to a head — to bring or be brought to a crisis
- brush discharge — a slightly luminous electrical discharge between points of high charge density when the charge density is insufficient to cause a spark or around sharp points on a highly charged conductor because of ionization of air molecules in their vicinity
- burt l standish — Burt L. pseudonym of Gilbert Patten.
- calf diphtheria — a disease of the throat in young calves caused by Fusobacterium necrophorum, resulting in breathing difficulty and a painful cough
- camphorated oil — a liniment consisting of camphor and peanut oil, used as a counterirritant
- canadian french — the French language as spoken in Canada, esp in Quebec
- cardinal humour — any of the four bodily fluids (blood, phlegm, choler or yellow bile, melancholy or black bile) formerly thought to determine emotional and physical disposition
- carding machine — card2 (defs 1, 2).
- cathedral choir — the choir, traditionally consisting of boys and men, that sings in cathedral services
- chandler period — the period of the oscillation (Chandler wobble) of the earth's axis, varying between 416 and 433 days.
- charles dickens — Charles (John Huf·fam) [huhf-uh m] /ˈhʌf əm/ (Show IPA), ("Boz") 1812–70, English novelist.
- chesterfieldian — of or like Lord Chesterfield; suave; elegant; polished
- cheval de frise — a portable obstacle, usually a sawhorse, covered with projecting spikes or barbed wire, for military use in closing a passage, breaking in a defensive wall, etc.
- cheval-de-frise — a portable barrier of spikes, sword blades, etc, used to obstruct the passage of cavalry
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