17-letter words containing r, h, o, d, c
- dehydrochlorinase — an enzyme that catalyzes the removal of hydrogen and chlorine atoms or ions from chlorinated hydrocarbons.
- dehydrochlorinate — to remove hydrogen chloride or chlorine and hydrogen from (a substance).
- denatured alcohol — ethanol rendered unfit for human consumption by the addition of a noxious substance, as in methylated spirits
- dendroarchaeology — (archaeology) the science that uses dendrochronology to date wooden material from archaeological sites.
- designer clothing — Designer clothing is fashionable or luxury clothing made by, or carrying the label of, a well-known fashion designer.
- despotic monarchy — absolute monarchy.
- dessert chocolate — cooking chocolate
- desynchronisation — (British spelling) Alternative form of desynchronization.
- desynchronization — to cause to indicate the same time, as one timepiece with another: Synchronize your watches.
- dialect geography — linguistic geography
- dielectrophoresis — Dielectrophoresis is the movement of uncharged particles (= ones with no electrical charge) when a changing electric field is applied.
- dietrich von bern — Theodoric of Verona: the name of the eastern Gothic emperor Theodoric as it appears in German legends.
- doberman pinscher — one of a German breed of medium-sized, short-haired dogs having a black, brown, or blue coat with rusty brown markings.
- douglas macarthur — Douglas, 1880–1964, U.S. general: supreme commander of allied forces in SW Pacific during World War II and of UN forces in Korea 1950–51.
- echocardiographer — A person who performs echocardiography.
- echocardiographic — Of or pertaining to echocardiography.
- exception handler — Special code which is called when an exception occurs during the execution of a program. If the programmer does not provide a handler for a given exception, a built-in system exception handler will usually be called resulting in abortion of the program run and some kind of error indication being returned to the user. Examples of exception handler mechanisms are Unix's signal calls and Lisp's catch and throw.
- fourfold purchase — a tackle that is composed of a rope passed through two fourfold blocks in such a way as to provide mechanical power in the ratio of 1 to 5 or 1 to 4, depending on whether hauling is done on the running or the standing block and without considering friction. Compare tackle (def 2).
- freedom of speech — the right of people to express their opinions publicly without governmental interference, subject to the laws against libel, incitement to violence or rebellion, etc.
- french somaliland — a former name of Djibouti (def 1).
- further education — adult education.
- go for the doctor — to make a great effort or move very fast, esp in a horse race
- good-time charlie — an affable, sociable, pleasure-loving man.
- grandfather clock — a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
- grandmother clock — a pendulum clock similar to a grandfather's clock but shorter.
- haemorrhoidectomy — surgical removal of haemorrhoids
- half-round chisel — a cold chisel with a semicircular cutting edge used for making narrow channels
- 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.
- hard nut to crack — a dry fruit consisting of an edible kernel or meat enclosed in a woody or leathery shell.
- hard rock geology — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- haroun-al-raschid — Harun al-Rashid.
- henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
- herbaceous border — A herbaceous border is a flower bed containing a mixture of plants that flower every year.
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- 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
- household cavalry — (in Britain) cavalry units forming part of the ceremonial guard of the monarch.
- 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.
- hydrofluorocarbon — Any of a class of partly chlorinated and fluorinated hydrocarbons, used as an alternative to chlorofluorocarbons in foam production, refrigeration, and other processes.
- 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.