17-letter words containing o, c, h, i, d, r
- hall of residence — Halls of residence are buildings with rooms or flats, usually built by universities or colleges, in which students live during the term.
- haroun-al-raschid — Harun al-Rashid.
- historical method — the process of establishing general facts and principles through attention to chronology and to the evolution or historical course of what is being studied.
- homeland security — national defence
- hornblende schist — a variety of schist containing needles of hornblende that lie in parallel planes.
- horseradish sauce — a piquant sauce made from horseradish root, vinegar, etc, and traditionally eaten in Britain with roast beef
- hybrid fiber coax — (networking) (HFC) A kind of physical connection used in networks for audio, video, and data. DVB (Digital Video Broadcast) is used in Europe and DOCSIS is used in N America.
- hydrochloric acid — a colorless or faintly yellow, corrosive, fuming liquid, HCl, used chiefly in chemical and industrial processes.
- hydroelectrically — Using hydroelectric power.
- hydrofluoric acid — a colorless, fuming, corrosive liquid, HF, an aqueous solution of hydrogen fluoride, used chiefly for etching glass.
- hydrogasification — a high-temperature, high-pressure process for producing liquid or gaseous fuels from fine particles of coal and hydrogen gas
- hydrogen chloride — a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.
- hydrotherapeutics — hydrotherapy.
- hypochlorous acid — a weak, unstable acid, HOCl, existing only in solution and in the form of its salts, used as a bleaching agent and disinfectant.
- hypochondriacally — In a hypochondriacal manner.
- hypodermic needle — a hollow needle used to inject solutions subcutaneously.
- icosidodecahedron — A semiregular polyhedron with twelve faces that are regular pentagons and twenty that are equilateral triangles.
- icositetrahedrons — Plural form of icositetrahedron.
- in the background — behind the focus of attention
- industrial school — a school for teaching one or more branches of industry; trade or vocational school.
- integrated school — (in New Zealand) a private or church school that has joined the state school system
- medicochirurgical — pertaining to medicine and surgery.
- mercuric chloride — a white, crystalline, water-soluble, strongly acrid, highly poisonous solid, HgCl 2 , prepared by sublimation of chlorine with mercury, and used chiefly as an antiseptic.
- microfiche reader — a machine that displays on a screen a magnified image of a microfiche
- mitochondrial dna — DNA found in mitochondria, which contains some structural genes and is generally inherited only through the female line
- modulo arithmetic — modular arithmetic
- muscle dysmorphia — a mental disorder primarily affecting males, characterized by obsessions about a perceived lack of muscularity, leading to compulsive exercising, use of anabolic steroids, etc. Compare body dysmorphic disorder.
- nitrohydrochloric — (chemistry) Of, pertaining to, or containing, nitric acid and hydrochloric acids.
- nitroxanthic acid — picric acid.
- orifice discharge — Orifice discharge is a model for calculating how quickly a fluid will come out of a punctured vessel or pipe.
- orthovanadic acid — an oxyacid of vanadium, known chiefly in the form of its vanadate salts. Formula: H3VO4
- parathyroidectomy — the excision of a parathyroid gland.
- 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.
- pseudo-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- quick on the draw — having fast reflexes
- read the riot act — an English statute of 1715 providing that if 12 or more persons assemble unlawfully and riotously, to the disturbance of the public peace, and refuse to disperse upon proclamation they shall be considered guilty of felony.
- receding forehead — a forehead which slopes backwards
- rheumatoid factor — an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
- smarandache logic — neutrosophic logic
- sodium bichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- 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.
- sulfonyl chloride — a colorless liquid, SO 2 Cl 2 , having a very pungent odor and corrosive to the skin and mucous membranes: used as a chlorinating or sulfonating agent.
- teacher education — training to become a teacher, usually at an institution of higher education
- 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
- thermoperiodicity — the effect on an organism of rhythmic fluctuations in temperature.
- thiosulfuric acid — an acid, H 2 S 2 O 3 , that may be regarded as sulfuric acid with one oxygen atom replaced by sulfur.
- third commandment — “Thou shalt not take the name of the Lord thy God in vain”: third of the Ten Commandments.