17-letter words containing n, r, e
- hurricane warning — a storm warning given for winds with speeds exceeding 63 knots (72 mph, 32 m/sec) when the source of the winds is a tropical cyclone.
- huygens principle — the principle that all points on a wave front of light are sources of secondary waves and that surfaces tangential to these waves define the position of the wave front at any point in time.
- hyaline cartilage — the typical, translucent form of cartilage, containing little fibrous tissue.
- hydrogen chloride — a colorless gas, HCl, having a pungent odor: the anhydride of hydrochloric acid.
- hydrogen fluoride — a colorless corrosive gas, HF, the anhydride of hydrofluoric acid, used chiefly as a catalyst and in the fluorination of hydrocarbons.
- hydrogen peroxide — a colorless, unstable, oily liquid, H 2 O 2 , an aqueous solution of which is used chiefly as an antiseptic and a bleaching agent.
- hydrogen sulphide — Chemistry
- hydrothermal vent — an opening on the floor of the sea from which hot, mineral-rich solutions issue. Compare vent1 (def 2).
- hydroxytryptamine — (organic compound) Any hydroxy derivative of tryptamine, but especially 5-hydroxytryptamine (serotonin).
- hyper-intelligent — having good understanding or a high mental capacity; quick to comprehend, as persons or animals: an intelligent student.
- hyperalimentation — overfeeding.
- hyperbolic cosine — 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; cosh
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- hyperchlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- hyperconnectivity — Hyperconnectivity is the use of many systems and devices so that you are always connected to social networks and other sources of information.
- hyperinflationary — (economics) Having very high levels of inflation.
- hyperintellectual — appealing to or engaging the intellect: intellectual pursuits.
- hyperpigmentation — coloration, especially of the skin.
- hyperpolarisation — Alternative spelling of hyperpolarization.
- hyperpolarization — The act or process of hyperpolarizing.
- hypodermic needle — a hollow needle used to inject solutions subcutaneously.
- hypoglossal nerve — either one of the twelfth pair of cranial nerves, consisting of motor fibers that innervate the muscles of the tongue.
- hypophrygian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from B to B, with the final on E.
- hysteron proteron — a figure of speech in which the logical order of two elements in discourse is reversed, as in “bred and born” for “born and bred.”.
- i beg your pardon — You say 'Pardon?' or 'I beg your pardon?' or, in American English, 'Pardon me?' when you want someone to repeat what they have just said because you have not heard or understood it.
- iambic pentameter — a verse line consisting of five metrical iambs
- iberian peninsula — Also called Iberian Peninsula. a peninsula in SW Europe, comprising Spain and Portugal.
- icosidodecahedron — A semiregular polyhedron with twelve faces that are regular pentagons and twenty that are equilateral triangles.
- icositetrahedrons — Plural form of icositetrahedron.
- ignoratio elenchi — the fallacy of offering proof irrelevant to the proposition in question.
- illegal immigrant — a person who has entered a country illegally
- illinois waterway — a waterway system in N Illinois made up of canals and rivers connecting Lake Michigan in Chicago with the Mississippi River. 336 miles (541 km) long.
- image intensifier — any of various devices for amplifying the intensity of an optical image, sometimes used in conjunction with an image converter
- image recognition — (graphics, artificial intelligence) The identification of objects in an image. This process would probably start with image processing techniques such as noise removal, followed by (low-level) feature extraction to locate lines, regions and possibly areas with certain textures. The clever bit is to interpret collections of these shapes as single objects, e.g. cars on a road, boxes on a conveyor belt or cancerous cells on a microscope slide. One reason this is an AI problem is that an object can appear very different when viewed from different angles or under different lighting. Another problem is deciding what features belong to what object and which are background or shadows etc. The human visual system performs these tasks mostly unconsciously but a computer requires skillful programming and lots of processing power to approach human performance.
- immediate version — child version
- immigrant workers — people who work in a country they arrived to in order to settle there
- immunocompromised — having an impaired or compromised immune response; immunodeficient.
- immunofluorescent — Of, pertaining to, or using immunofluorescence.
- immunosuppressant — (pharmacology) Capable of immunosuppression, immunosuppressive.
- immunosuppression — the inhibition of the normal immune response because of disease, the administration of drugs, or surgery.
- immunosuppressive — capable of causing immunosuppression: immunosuppressive drugs.
- immunotherapeutic — (immunology, medicine) Of a pharmaceutical, acting on the immune system to treat disease; used in immunotherapy.
- impersonalization — to make impersonal: The dial system impersonalized the telephone.
- impersonification — (archaic) the act of impersonating; impersonation.
- implosion therapy — a form of behavior therapy involving intensive recollection and review of anxiety-producing situations or events in a patient's life in an attempt to develop more appropriate responses to similar situations in the future.
- impracticableness — The state of being impracticable; impracticability.
- impressionability — easily impressed or influenced; susceptible: an impressionable youngster.
- improper fraction — a fraction having the numerator greater than the denominator.
- improper integral — Also called infinite integral. a definite integral in which one or both of the limits of integration is infinite.
- improvement grant — a sum of money provided by a government, local authority, or public fund to finance the amelioration of a building, area of land, etc