17-letter words containing c, o, h
- hard rock geology — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- harmonic analysis — the calculation of Fourier series and their generalization.
- harmonic interval — an intervening period of time: an interval of 50 years.
- haroun-al-raschid — Harun al-Rashid.
- hasbrouck heights — a borough in NE New Jersey.
- 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.
- helicopter parent — a style of child rearing in which an overprotective mother or father discourages a child's independence by being too involved in the child's life: In typical helicopter parenting, a mother or father swoops in at any sign of challenge or discomfort.
- hemiglossectomies — Plural form of hemiglossectomy.
- hemoconcentration — an increase in the concentration of cellular elements in the blood, resulting from loss of plasma.
- hemorrhagic fever — any of several arbovirus infections, as dengue, characterized by fever, chills, and malaise followed by hemorrhages of capillaries, sometimes leading to kidney failure and death.
- henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
- heptanedioic acid — pimelic acid.
- 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
- heterochromosomes — Plural form of heterochromosome.
- hexacosanoic acid — cerotic acid.
- hexadecanoic acid — palmitic acid.
- high commissioner — a representative of one sovereign member of the Commonwealth of Nations in the country of another, having a rank and responsibilities generally similar to those of an ambassador.
- high-carbon steel — steel containing between 0.5 and 1.5 per cent carbon
- hippocampal gyrus — a convolution on the inner surface of the temporal lobe of the cerebrum, bordering the hippocampus.
- histamine blocker — any of various substances that act at a specific receptor site to block certain actions of histamine.
- histopathological — the science dealing with the histological structure of abnormal or diseased tissue; pathological histology.
- 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.
- historical school — a school of economists that arose in Germany in the 19th century in reaction to the principles of the classical economists, and that maintained that the factors making up an economy are variable and develop out of social institutions.
- historiographical — the body of literature dealing with historical matters; histories collectively.
- hit for the cycle — any complete round or series of occurrences that repeats or is repeated.
- ho chi minh trail — a network of jungle paths winding from North Vietnam through Laos and Cambodia into South Vietnam, used as a military route by North Vietnam to supply the Vietcong during the Vietnam War.
- hold all the aces — If you say that someone holds all the aces, you mean that they have all the advantages in a contest or situation.
- holistic medicine — incorporating the concept of holism, or the idea that the whole is more than merely the sum of its parts, in theory or practice: holistic psychology.
- hollandaise sauce — a sauce of egg yolks, butter, lemon juice, and seasonings.
- homeland security — national defence
- homeopathic magic — magic that attempts to control the universe through the mimicking of a desired event, as by stabbing an image of an enemy in an effort to destroy him or her or by performing a ritual dance imitative of the growth of food in an effort to secure an abundant supply; a branch of sympathetic magic based on the belief that similar actions produce similar results.
- homework exercise — an exercise that is set as homework
- homogentisic acid — an intermediate compound in the metabolism of tyrosine and of phenylalanine, found in excess in the blood and urine of persons affected with alkaptonuria.
- homolytic fission — the dissociation of a molecule into two neutral fragments
- homovanillic acid — the end product of dopamine metabolism, C 9 H 10 O 4 , found in human urine.
- horatio kitchener — Horatio Herbert (1st Earl Kitchener of Khartoum and of Broome) 1850–1916, English field marshal and statesman.
- 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
- horticulturalists — Plural form of horticulturalist.
- houndstooth check — a pattern of broken checks, used in woven material for jackets, shirts, etc.
- household cavalry — (in Britain) cavalry units forming part of the ceremonial guard of the monarch.
- household effects — domestic belongings
- housekeeping cart — A housekeeping cart is a large metal basket on wheels which is used by a cleaner in a hotel to move clean bed linen, towels, and cleaning equipment.
- hubble's constant — the ratio of the recessional velocity of galaxies to their distance from the sun, with current measurements of its value ranging from 50 to 100 km/sec per megaparsec.
- 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.