18-letter words containing a, n, o, t, h
- genetic algorithms — genetic algorithm
- giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
- goods and chattels — personal property
- half-open interval — a set of numbers between two given numbers but including only one endpoint.
- hamilton's problem — Hamiltonian problem
- hand it to someone — to give credit to someone
- harnessed antelope — any African antelope of the genus Tragelaphus, especially the bushbuck, having the body marked with white stripes and spots that resemble a harness, and, in the male, long, gently spiraling horns.
- haulage contractor — a person or firm that transports goods by lorry
- have a thing about — If you have a thing about someone or something, you have very strong feelings about them.
- have money to burn — to have more money than one needs, so that some can be spent foolishly
- have no hesitation — If you say that you have no hesitation in doing something, you are emphasizing that you will do it immediately or willingly because you are certain that it is the right thing to do.
- have one's moments — If you say that someone or something has their moments, you are indicating that there are times when they are successful or interesting, but that this does not happen very often.
- 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
- helicopter station — a place where helicopters are kept in readiness for use
- 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
- highlight halftone — dropout (def 7).
- 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 present — the present tense used in narrating a past event as if happening at the time of narration.
- hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
- home entertainment — the aggregate of appliances, as stero systems, television, videocassette recorders, or computers, used for diversion in the home.
- homelands movement — the programme to resettle native Australians on their tribal lands
- 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.
- horizontal tasting — a tasting of wines from the same year but from different vineyards, producers, etc.
- hot-water cylinder — a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
- human rights group — a group that campaigns for human rights
- hungarian notation — (language, convention) A linguistic convention requiring one or more letters to be added to the start of variable names to denote scope and/or type. Hungarian Notation is mainly confined to Microsoft Windows programming environments, such as Microsoft C, C++ and Visual Basic. It was originally devised by Charles Simonyi, a Hungarian, who was a senior programmer at Microsoft for many years. He disliked the way that names in C programs gave no clue as to the type, leading to frequent programmer errors. According to legend, fellow programmers at Microsoft, on seeing the convoluted, vowel-less variable names produced by his scheme, said, "This might as well be in Greek - or even Hungarian!". They made up the name "Hungarian notation" (possibly with "reverse Polish notation" in mind). Hungarian Notation is not really necessary when using a modern strongly-typed language as the compiler warns the programmer if a variable of one type is used as if it were another type. It is less useful in object-oriented programming languages such as C++, where many variables are going to be instances of classes and so begin with "obj". In addition, variable names are essentially only comments, and thus are just as susceptible to becoming out-of-date and incorrect as any other comment. For example, if a signed short int becomes an unsigned long int, the variable name, and every use of it, should be changed to reflect its new type. A variable's name should describe the values it holds. Type and scope are aspects of this, but Hungarian Notation overemphasises their importance by allocating so much of the start of the name to them. Furthermore, type and scope information can be found from the variable's declaration. Ironically, this is particularly easy in the development environments in which Hungarian Notation is typically used.
- huntington station — a town on W Long Island, in SE New York.
- hydroxynaphthalene — naphthol.
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hyperconcentration — the act of concentrating; the state of being concentrated.
- hypernationalistic — a person devoted to nationalism.
- hyperproliferation — (biology) An abnormally high rate of proliferation of cells by rapid division.
- hypersensitization — Photography. to treat (a film or emulsion) so as to increase its speed.
- hypersexualisation — Alternative spelling of hypersexualization.
- hypersexualization — The act or process of hypersexualizing.
- hysterical reasons — (Or "hysterical raisins") A variant on the stock phrase "for historical reasons", indicating specifically that something must be done in some stupid way for backward compatibility, and moreover that the feature it must be compatible with was the result of a bad design in the first place. "All IBM PC video adaptors have to support MDA text mode for hysterical reasons." Compare bug-for-bug compatible.
- immunohistological — the microscopic study of tissues with the aid of antibodies that bind to tissue components and reveal their presence.
- in accordance with — conforming to
- in another's shoes — in another's position
- in company with sb — If you feel, believe, or know something in company with someone else, you both feel, believe, or know it.
- in comparison with — when compared to
- in compliance with — in accordance with
- in the face of sth — If you take a particular action or attitude in the face of a problem or difficulty, you respond to that problem or difficulty in that way.
- in the last resort — You use in the last resort when stating the most basic or important fact that will still be true in a situation whatever else happens.