18-letter words containing o, h
- have two left feet — to be very clumsy
- have words with sb — If one person has words with another, or if two or more people have words, they have a serious discussion or argument, especially because one has complained about the other's behaviour.
- have/be to do with — If you say that one thing has something to do with or is something to do with another thing, you mean that the two things are connected or that the first thing is about the second thing.
- head and shoulders — If you say that someone or something stands head and shoulders above other people or things, you mean that they are a lot better than them.
- health care worker — A health care worker is someone who works in a hospital or health centre.
- heart-rate monitor — a machine that monitors or records a person's heart rate
- hearts and flowers — maudlin sentimentality: The play is a period piece, full of innocence abused and hearts and flowers.
- heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
- hebdomadal council — the governing council or senate of Oxford University
- heimlich manoeuvre — a technique in first aid to dislodge a foreign body in a person's windpipe by applying sudden upward pressure on the upper abdomen
- helicopter gunship — military attack helicopter
- helicopter station — a place where helicopters are kept in readiness for use
- hell or high water — whatever difficulties may arise
- helmholtz function — the thermodynamic function of a system that is equal to its internal energy minus the product of its absolute temperature and entropy: A decrease in the function is equal to the maximum amount of work available during a reversible isothermal process.
- hemicorporectomies — Plural form of hemicorporectomy.
- hemorrhoidectomies — Plural form of hemorrhoidectomy.
- hepatosplenomegaly — Enlargement of both the liver and spleen.
- heptadecanoic acid — a colourless crystalline water-insoluble carboxylic acid used in organic synthesis. Formula: CH3(CH2)15COOH
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- herring bone weave — a pattern consisting of adjoining vertical rows of slanting lines, any two contiguous lines forming either a V or an inverted V , used in masonry, textiles, embroidery, etc.
- herringbone stitch — a type of cross-stitch in embroidery similar to the catch stitch in sewing, consisting of an overlapped V -shaped stitch that when worked in a continuous pattern produces a twill-weave effect.
- heteroscedasticity — (statistics) The property of a series of random variables of 'not' every variable having the same finite variance.
- heteroskedasticity — Alternative spelling of heteroscedasticity.
- hexachlorobiphenyl — (organic compound) Either of forty-two isomers of the polychlorinated biphenyl containing six chlorine atoms.
- hexaphosphorylated — (biochemistry) phosphorylated with six units of phosphoric acid.
- hidalgo y costilla — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1753–1811, Mexican priest, patriot, and revolutionist.
- hideyoshi toyotomi — 1536–98, Japanese military dictator (1582–98). He unified all Japan (1590)
- high speed connect — (hardware) (HSC) A Hewlett-Packard bus like EISA.
- higher-order macro — A means of expressing certain higher-order functions in a first order language. Proposed by Phil Wadler. Higher-order macros cannot be recursive at the top level but they may contain recursive definitions. E.g. See partial evaluation.
- highlight halftone — dropout (def 7).
- hilary of poitiers — Saint, a.d. c300–368, French bishop and theologian.
- hippocratic facies — the sallow facial expression, with listless staring eyes, often regarded as denoting approaching death
- histocompatibility — the condition of having antigenic similarities such that cells or tissues transplanted from one (the donor) to another (the recipient) are not rejected.
- histomorphological — histology.
- historical fiction — the genre of literature, film, etc., comprising narratives that take place in the past and are characterized chiefly by an imaginative reconstruction of historical events and personages.
- historical geology — the branch of geology dealing with the history of the earth.
- historical present — the present tense used in narrating a past event as if happening at the time of narration.
- hit the high spots — to stain or mark with spots: The grease spotted my dress.
- hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
- hold up one's head — to be unashamed
- home entertainment — the aggregate of appliances, as stero systems, television, videocassette recorders, or computers, used for diversion in the home.
- home of the hirsel — Baron, title of Sir Alec Douglas-Home, formerly 14th Earl of Home. 1903–95, British Conservative statesman: he renounced his earldom to become prime minister of Great Britain and Northern Ireland (1963–64); foreign secretary (1970–74)
- homelands movement — the programme to resettle native Australians on their tribal lands
- homeowner's policy — a form of home insurance that provides compensation for damage, loss, or injury of property, personal belongings, or persons due to fire, theft, accidents, etc.
- honest-to-goodness — real or genuine.
- honeysuckle family — the plant family Caprifoliaceae, typified by shrubs and woody vines having opposite leaves, clusters of usually flaring, narrow, tubular flowers, and various types of fruit, and including the elder, honeysuckle, snowberry, twinflower, and viburnum.
- honorable ordinary — any of the ordinaries believed to be among those that are oldest or that were the source of the other ordinaries, as the chief, pale, fess, bend, chevron, cross, and saltire.
- honorary secretary — a unpaid person who is one of the managers of an organization
- honour moderations — (at Oxford University) the first public examination, in which candidates are placed into one of three classes of honours
- honourable mention — If something that you do in a competition is given an honourable mention, it receives special praise from the judges although it does not actually win a prize.