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15-letter words containing o, r, n

  • horse-and-buggy — of or relating to the last few generations preceding the invention of the automobile: vivid recollections of horse-and-buggy days.
  • hospital corner — a fold on a bed sheet or blanket made by tucking the foot or head of the sheet straight under the mattress with the ends protruding and then making a diagonal fold at the side corner of the sheet and tucking this under to produce a triangular corner.
  • hot-air balloon — passenger balloon
  • housing project — a publicly built and operated housing development, usually intended for low- or moderate-income tenants, senior citizens, etc.
  • hovering accent — indeterminacy as to which of two consecutive syllables in a line of verse bears the metrical stress, as in any of the first three feet of Slow, slow, / fresh fount, / keep time / with my / salt tears.
  • hovering vessel — a vessel in territorial waters apparently collaborating in illicit operations.
  • hughes syndrome — a condition of the autoimmune system caused by antibodies reacting against phospholipids, leading to thrombosis
  • human geography — the study of the interaction between human beings and their environment in particular places and across spatial areas.
  • human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
  • human resources — (used with a plural verb) people, especially the personnel employed by a given company, institution, or the like.
  • hundred flowers — the 1957 political campaign in the People's Republic of China to encourage greater freedom of intellectual expression, initiated by Mao Zedong under the slogan “Let a hundred flowers bloom, let a hundred schools of thought contend.”.
  • hunting leopard — the cheetah.
  • huntingdonshire — a former county in E England, now part of Cambridgeshire.
  • huntington park — a city in SW California, near Los Angeles.
  • hurdle champion — a hurdler who has defeated all others in a competition
  • hyaluronic acid — a mucopolysaccharide serving as a viscous medium in the tissues of the body and as a lubricant in joints.
  • hybrid antibody — a synthetic antibody that is able to combine with two different antigens
  • hydrodynamicist — a specialist in hydrodynamics.
  • hydrofracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
  • hydrogen iodide — a colorless gas, HI, having a suffocating odor: the anhydride of hydriodic acid.
  • hydromechanical — Of or pertaining to hydromechanics.
  • hydroxonium ion — a positive ion, H3O+, formed by the attachment of a proton to a water molecule: occurs in solutions of acids and behaves like a hydrogen ion
  • hydroxycoumarin — (organic compound) Any of several isomeric hydroxy derivatives of coumarin, some of which are the basis of pharmaceuticals.
  • hype-carbonated — (of a product or service) overvalued as a result of relentless marketing and PR or intensive media exposure
  • hyper-emotional — pertaining to or involving emotion or the emotions.
  • hyperactivation — (biology) A form of sperm motility associated with active beating of the flagellum.
  • hyperbolic sine — one of a group of functions of an angle expressed as a relationship between the distances of a point on a hyperbola to the origin and to the coordinate axes; sinh
  • hypercorrection — the substitution, in an inappropriate context, of a pronunciation, grammatical form, or usage thought by the speaker or writer to be appropriate, resulting usually from overgeneralizing in an effort to replace seemingly incorrect forms with correct ones, as the substitution of between you and I for between you and me, by analogy with you and I as the subject of a sentence.
  • hyperfunctional — of or relating to a function or functions: functional difficulties in the administration.
  • hyperinvolution — a decrease in the size of an organ following enlargement, usually used to describe the shrinking of the uterus after childbirth
  • hyperovarianism — precocious sexuality in girls due to abnormally heavy ovarian secretion.
  • hyperpolarizing — Present participle of hyperpolarize.
  • hyperproduction — an increased or excessive production or output
  • hyperresponsive — responding especially readily and sympathetically to appeals, efforts, influences, etc.: a responsive government.
  • hypersalivation — the act or process of salivating.
  • hypersomnolence — sleepy; drowsy.
  • hypochondriacal — Also, hypochondriacal, H05/H0509000 hahy-poh-kuh n-drahy-uh-kuh l, ˌhaɪ poʊ kənˈdraɪ ə kəl. Psychiatry. pertaining to or suffering from hypochondria, an excessive preoccupation with and worry about one's health: The comedy is aimed at the hypochondriac demographic. produced by hypochondria: Hypochondriac feelings overwhelmed her.
  • hypochondriases — Plural form of hypochondriasis.
  • hypochondriasis — Also, hypochondriasis [hahy-poh-kuh n-drahy-uh-sis] /ˌhaɪ poʊ kənˈdraɪ ə sɪs/ (Show IPA). Psychiatry. an excessive preoccupation with one's health, usually focusing on some particular symptom, as cardiac or gastric problems.
  • hypocrystalline — (of igneous rocks) having both glass and crystalline components
  • hypodorian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from A to A, with the final on D.
  • hypoproteinemia — an abnormally low concentration of protein in the blood.
  • ibero-maurusian — of or relating to an Epipaleolithic culture of northwestern Africa that preceded the Capsian culture and was once erroneously thought to have originated in southwestern Europe; characterized by the use of backed bladelets, occupation of the maritime plain, and the hunting of the Barbary sheep.
  • identity theory — a form of materialism which holds mental states to be identical with certain states of the brain and so to have no separate existence, but regards this identity as contingent so that mentalistic and physicalistic language are not held to be synonymous
  • idiosyncratical — Alternative form of idiosyncratic.
  • ignition source — An ignition source is a process or event which can cause a fire or explosion.
  • illustriousness — The state of being illustrious.
  • image converter — a device for producing a visual image formed by other electromagnetic radiation such as infrared or ultraviolet radiation or X-rays
  • immortalization — to bestow unending fame upon; perpetuate.
  • immune response — any of the body's immunologic reactions to an antigen.
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