17-letter words containing a, c, r, o, y
- harmonic analysis — the calculation of Fourier series and their generalization.
- health care proxy — a legal document in which a person can appoint someone to make decisions about medical treatment in the event that he or she is no longer mentally competent or able to communicate.
- henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
- heterochlamydeous — (of a plant) having a perianth consisting of distinct sepals and petals
- hippocampal gyrus — a convolution on the inner surface of the temporal lobe of the cerebrum, bordering the hippocampus.
- homeland security — national defence
- 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
- hydrotherapeutics — hydrotherapy.
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- hyperbolic spiral — rθ = a, (where a is a constant)
- hyperchlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- 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.
- hypocholesteremia — an abnormally low amount of cholesterol in the blood.
- hypochondriacally — In a hypochondriacal manner.
- ichthyosarcotoxin — a term applied to any poison found in the flesh of poisonous fishes.
- ideogrammatically — In terms of, or by means of, ideograms.
- idiosyncratically — pertaining to the nature of idiosyncrasy, or something peculiar to an individual: The best minds are idiosyncratic and unpredictable as they follow the course of scientific discovery.
- illocutionary act — an act performed by a speaker by virtue of uttering certain words, as for example the acts of promising or of threatening
- insurance company — company that sells insurance policies
- intersectionality — the theory that the overlap of various social identities, as race, gender, sexuality, and class, contributes to the specific type of systemic oppression and discrimination experienced by an individual (often used attributively): Her paper uses a queer intersectionality approach.
- iontophoretically — By means of iontophoresis.
- irreconcilability — incapable of being brought into harmony or adjustment; incompatible: irreconcilable differences.
- isopropyl alcohol — a colorless, flammable, water-soluble liquid, C 3 H 8 O, produced from propylene by the action of sulfuric acid and hydrolysis: used chiefly in the manufacture of antifreeze and rubbing alcohol and as a solvent.
- keep your balance — If you keep your balance, for example when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.
- keyboard commando — (messaging) A bulletin board user who posts authoritatively on military or combat topics, but who has never served in uniform or heard a shot fired in anger. A poseur.
- laboratory school — a school maintained by a college or university for the training of student teachers.
- lance of courtesy — a lance having a blunt head to prevent serious injury by a jouster to an opponent.
- law of trichotomy — the property that for natural numbers a and b , either a is less than b , a equals b , or a is greater than b .
- lexicographically — the writing, editing, or compiling of dictionaries.
- liberal democracy — a democracy based on the recognition of individual rights and freedoms, in which decisions from direct or representative processes prevail in many policy areas
- lipopolysaccaride — a molecule, consisting of lipid and polysaccharide components, that is the main constituent of the cell walls of Gram-negative bacteria
- literary executor — a person entrusted with the publishable works and other papers of a deceased author.
- lymphangiographic — Relating to lymphangiography.
- machado y morales — Gerardo [he-rahr-th aw] /hɛˈrɑr ðɔ/ (Show IPA), 1871–1939, president of Cuba 1925–33.
- macroevolutionary — Pertaining to, or as a result of macroevolution.
- majority decision — a decision supported by more than half the people involved
- malay archipelago — an extensive island group in the Indian and Pacific oceans, SE of Asia, including the Greater and Lesser Sunda Islands, the Moluccas, and the Philippines.
- maraschino cherry — a cherry cooked in colored syrup and flavored with maraschino, used to garnish desserts, cocktails, etc.
- marriage ceremony — official part of a wedding
- mass spectroscopy — an instrument used to determine the masses of small, electrically charged particles.
- mayflower compact — an agreement to establish a government, entered into by the Pilgrims in the cabin of the Mayflower on November 11, 1620.
- membrane recovery — Membrane recovery is a process which uses membranes to obtain hydrogen from refinery fuel gas, hydrocrackers, and chemical processes such as methanol production.
- mercury barometer — a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.
- mercy otis warren — Earl, 1891–1974, U.S. lawyer and political leader: chief justice of the U.S. 1953–69.