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18-letter words containing h, y

  • hydroxyacetic acid — glycolic acid.
  • hydroxychloroquine — a colorless crystalline solid, C 18 H 26 ClN 3 O, used in the treatment of malaria, lupus erythematosus, and rheumatoid arthritis.
  • hydroxynaphthalene — naphthol.
  • hydroxytryptamines — Plural form of hydroxytryptamine.
  • hyper-intellectual — appealing to or engaging the intellect: intellectual pursuits.
  • 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.
  • hyperbaric chamber — a steel vessel in which atmospheric pressure can be raised or lowered by air compressors, used to treat divers or pilots afflicted with aeroembolism and to provide high-oxygen environments for certain medical treatments and operations.
  • hyperbilirubinemia — an abnormally high level of bilirubin in the blood, manifested by jaundice, anorexia, and malaise, occurring in association with liver disease and certain hemolytic anemias.
  • hypercholesteremia — Alternative spelling of hypercholesteraemia.
  • hyperconcentration — the act of concentrating; the state of being concentrated.
  • hypermodern school — a style of chess characterized by control of the centre from the flanks
  • hypernationalistic — a person devoted to nationalism.
  • hyperphosphorylate — To phosphorylate fully.
  • hyperproliferation — (biology) An abnormally high rate of proliferation of cells by rapid division.
  • hypersensitiveness — The state of being hypersensitive.
  • 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.
  • hypochromic anemia — an anemia characterized by an abnormally low concentration of hemoglobin in the red blood cells, often due to iron deficiency.
  • hypodermic syringe — a small glass piston or barrel syringe having a detachable, hollow needle for use in injecting solutions subcutaneously.
  • hypogastric artery — iliac artery (def 3).
  • hypoparathyroidism — Diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
  • hypophosphorylated — (biochemistry) phosphorylated to a less than normal extent, or less than fully.
  • hypophysis cerebri — the master endocrine gland, attached by a stalk to the base of the brain.
  • hyposulfurous acid — an acid, H 2 S 2 O 4 , next in a series below sulfurous acid, known only in solution or in the form of its salts.
  • hypothesis testing — the theory, methods, and practice of testing a hypothesis concerning the parameters of a population distribution (the null hypothesis) against another (the alternative hypothesis) which will be accepted only if its probability exceeds a predetermined significance level, generally on the basis of statistics derived from random sampling from the given population
  • 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.
  • i'll eat my hat if — I will be greatly surprised if (something happens that proves me wrong)
  • i'll give you that — You say I'll give you that to indicate that you admit that someone has a particular characteristic or ability.
  • idylls of the king — a series of poems by Tennyson, based on Arthurian legend.
  • immunopharmacology — the branch of pharmacology concerned with the immune system
  • in company with sb — If you feel, believe, or know something in company with someone else, you both feel, believe, or know it.
  • in the vicinity of — near to, in the area around
  • industrial hygiene — the science that assesses, controls, and prevents occupational factors or sources of stress in the workplace that may significantly affect the health and well-being of employees or of the community in general
  • 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.
  • interchangeability — (of two things) capable of being put or used in the place of each other: interchangeable symbols.
  • internet telephony — IP Telephony
  • james-lange theory — a theory that emotions are caused by bodily sensations; for example, we are sad because we weep
  • john birch society — an ultraconservative organization, founded in December 1958 by Robert Welch, Jr., chiefly to combat alleged Communist activities in the U.S.
  • johnny on the spot — a person who is ready and at hand whenever needed
  • johnny-come-lately — a late arrival or participant; newcomer: the Johnny-come-latelies producing space-war films after the trend had ended.
  • johnny-on-the-spot — a person who is on hand to perform a service, seize an opportunity, deal with an emergency, etc.
  • junior heavyweight — a boxer weighing up to 190 pounds (85.5 kg), between light heavyweight and heavyweight.
  • kansas gay-feather — prairie button snakeroot.
  • keep your hair on! — keep calm
  • keep your shirt on — refrain from losing your temper (often used as an exhortation to another)
  • knights of pythias — a fraternal order founded in Washington, D.C., in 1864.
  • launching ceremony — a ceremony that celebrates the launch of a ship for the first time into the water
  • lay at the door of — to blame (a person) for
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