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18-letter words containing a, e, r, o, t, h

  • helicopter station — a place where helicopters are kept in readiness for use
  • hell or high water — whatever difficulties may arise
  • hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
  • heteroscedasticity — (statistics) The property of a series of random variables of 'not' every variable having the same finite variance.
  • heteroskedasticity — Alternative spelling of heteroscedasticity.
  • hexaphosphorylated — (biochemistry) phosphorylated with six units of phosphoric acid.
  • hilary of poitiersSaint, a.d. c300–368, French bishop and theologian.
  • hippocratic facies — the sallow facial expression, with listless staring eyes, often regarded as denoting approaching death
  • 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.
  • 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.
  • 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.
  • 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
  • hydroflumethiazide — A diuretic drug.
  • hydroxyacetic acid — glycolic acid.
  • hydroxynaphthalene — naphthol.
  • hydroxytryptamines — Plural form of hydroxytryptamine.
  • hyper-metaphorical — a figure of speech in which a term or phrase is applied to something to which it is not literally applicable in order to suggest a resemblance, as in “A mighty fortress is our God.”. Compare mixed metaphor, simile (def 1).
  • hyperaldosteronism — aldosteronism.
  • hypercholesteremia — Alternative spelling of hypercholesteraemia.
  • hyperconcentration — the act of concentrating; the state of being concentrated.
  • hypernationalistic — a person devoted to nationalism.
  • hyperphosphorylate — To phosphorylate fully.
  • 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.
  • hypogastric artery — iliac artery (def 3).
  • hypophosphorylated — (biochemistry) phosphorylated to a less than normal extent, or less than fully.
  • 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.
  • in accordance with — conforming to
  • in another's shoes — in another's position
  • 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.
  • indecent behaviour — the offence of committing indecent acts
  • information theory — the mathematical theory concerned with the content, transmission, storage, and retrieval of information, usually in the form of messages or data, and especially by means of computers.
  • inner automorphism — an automorphism that maps an element x into an element of the form axa −1 where a −1 is the inverse of a.
  • inter-relationship — reciprocal relation.
  • interrelationships — Plural form of interrelationship.
  • ionization chamber — a device for detecting and measuring ionizing radiation, consisting of a tube containing a low pressure gas and two electrodes between which a high voltage is maintained. The current between the electrodes is a function of the intensity of the radiation
  • iron (ii) sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
  • isothermal process — a process that takes place without change in temperature.
  • james-lange theory — a theory that emotions are caused by bodily sensations; for example, we are sad because we weep
  • japanese artichoke — Chinese artichoke.
  • johannes gutenberg — Johannes [yoh-hahn-uh s] /yoʊˈhɑn əs/ (Show IPA), (Johann Gensfleisch) c1400–68, German printer: credited with invention of printing from movable type.
  • junior heavyweight — a boxer weighing up to 190 pounds (85.5 kg), between light heavyweight and heavyweight.
  • knight of the road — a tramp
  • lactogenic hormone — prolactin.
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