16-letter words containing i, r, h, y
- health authority — a government agency that is responsible for NHS care in a particular area
- hearsay evidence — testimony based on what a witness has heard from another person rather than on direct personal knowledge or experience.
- hematocrystallin — (biology, archaic) hemoglobin.
- hemicorporectomy — (surgery) The surgical procedure which cuts through the spine and removes the lower half of the body from the waist down.
- hemorrhoidectomy — the surgical removal of hemorrhoids.
- hexahydroaniline — cyclohexylamine.
- hieroglyphically — In hieroglyphics.
- hierophantically — In a hierophantic manner; in the manner of a hierophant.
- high memory area — (storage) (HMA) The first 64 kilobytes (minus 16 byte) of the extended memory on an IBM PC. By a strange design glitch the Intel 80x86 processors can actually address 17*64 kbyte minus 16 byte of memory (from 0000:0000 to ffff:ffff) in real mode. In the Intel 8086 and Intel 8088 processors, unable to handle more than 1 megabyte of memory, addressing wrapped around, that is, address ffff:0010 was equivalent to 0000:0000. For compatibility reasons, later processors still wrapped around by default, but this feature could be switched off. Special programs called A20 handlers can control the addressing mode dynamically, thereby allowing programs to load themselves into the 1024--1088 kbyte region and run in real mode. From version 5.0 parts of MS-DOS can be loaded into HMA as well freeing up to 46 kbytes of conventional memory.
- honeymoon bridge — any of several varieties of bridge for two players.
- honeymoon period — a period of popularity enjoyed by a new government, or a new occupant of a post
- huckleberry finn — (The Adventures of Huckleberry Finn) a novel (1884) by Mark Twain.
- husayn ali mirza — 1817–92, Persian religious leader: founder of Bahāʾī.
- huyton-with-roby — an urban district in Merseyside, NW England, E of Liverpool.
- hyaloid membrane — the delicate, pellucid, and nearly structureless membrane enclosing the vitreous humor of the eye.
- hybrid perpetual — a type of cultivated rose bred from varieties having vigorous growth and more or less recurrent bloom.
- hydnocarpic acid — an acid, C 16 H 28 O 2 , obtained from chaulmoogra oil, and used in the treatment of leprosy.
- hydrated alumina — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- hydration number — the number of molecules of water with which an ion can combine in an aqueous solution of given concentration.
- hydraulic cement — cement that can solidify under water.
- hydraulic mining — placer mining using a pressurized stream of water.
- hydraulic radius — the ratio of the cross-sectional area to the perimeter of a pipe, outlet, or the like, through which a fluid is flowing.
- hydrobromic acid — a colorless or faintly yellow corrosive liquid, HBr, an aqueous solution of hydrogen bromide.
- hydrocyanic acid — a colorless, highly poisonous liquid, HCN, an aqueous solution of hydrogen cyanide.
- hydroelectricity — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
- hydroferricyanic — (chemistry) Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen.
- hydroformylation — the addition of a hydrogen atom and the formyl group to a double bond of a hydrocarbon by reaction with a mixture of carbon monoxide and hydrogen in the presence of a catalyst.
- hydrogen bromide — a colorless gas, HBr, having a pungent odor: the anhydride of hydrobromic acid.
- hydrogen cyanide — a colorless poisonous gas, HCN, having a bitter almondlike odor: in aqueous solution it forms hydrocyanic acid.
- hydrogen sulfide — a colorless, flammable, water-soluble, cumulatively poisonous gas, H 2 S, having the odor of rotten eggs: used chiefly in the manufacture of chemicals, in metallurgy, and as a reagent in laboratory analysis.
- hydrologic cycle — the natural sequence through which water passes into the atmosphere as water vapor, precipitates to earth in liquid or solid form, and ultimately returns to the atmosphere through evaporation.
- hydrostatic head — The hydrostatic head is the vertical height of a column of fluid.
- hydroxylammonium — (inorganic compound) The univalent NH3OH+ cation, derived from hydroxylamine.
- hyper-conformity — action in accord with prevailing social standards, attitudes, practices, etc.
- hyper-excitement — an excited state or condition.
- hyper-patriotism — devoted love, support, and defense of one's country; national loyalty.
- hyperandrogenism — (medicine) An abnormally high production of androgens.
- hyperchlorhydria — excessive secretion of hydrochloric acid in the stomach.
- hypercompetitive — Extremely competitive.
- hyperconjugation — (organic chemistry) A weak form of conjugation in which single bonds interact with a conjugated system.
- hypercorrections — Plural form of hypercorrection.
- hyperflexibility — capable of being bent, usually without breaking; easily bent: a flexible ruler.
- hyperinnervation — the act of innervating; state of being innervated.
- hyperinsulinemia — (medicine) The condition of having an excessively high level of insulin in the blood, usually due to excess production.
- hyperinsulinemic — Suffering from or characterized by hyperinsulinemia, an excessively high level of insulin in the blood.
- hyperintelligent — having good understanding or a high mental capacity; quick to comprehend, as persons or animals: an intelligent student.
- hyperlipoidaemia — Alt form hyperlipoidemia.
- hypermasculinity — pertaining to or characteristic of a man or men: masculine attire.
- hyperoxygenation — to treat, combine, or enrich with oxygen: to oxygenate the blood.
- hyperperistalsis — the progressive wave of contraction and relaxation of a tubular muscular system, especially the alimentary canal, by which the contents are forced through the system.