16-letter words containing i, r, m, n
- hermitian matrix — Mathematics. a matrix, whose entries are complex numbers, equal to the transpose of the matrix whose entries are the conjugates of the entries of the given matrix.
- heteropalindrome — Something that spells something else when reversed, a semordnilap.
- high-compression — of a modern type of internal-combustion engine designed so that the fuel mixture is compressed into a smaller cylinder space, resulting in more pressure on the pistons and more power
- high-performance — A high-performance car or other product goes very fast or does a lot.
- hispano-american — Spanish.
- 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
- hummingbird moth — hawk moth.
- husayn ali mirza — 1817–92, Persian religious leader: founder of Bahāʾī.
- hyaloid membrane — the delicate, pellucid, and nearly structureless membrane enclosing the vitreous humor of the eye.
- 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.
- 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.
- 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.
- hyperandrogenism — (medicine) An abnormally high production of androgens.
- 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.
- hypermasculinity — pertaining to or characteristic of a man or men: masculine attire.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hypervitaminosis — an abnormal condition caused by an excessive intake of vitamins.
- image processing — (graphics) Computer manipulation of images. Some of the many algorithms used in image processing include convolution (on which many others are based), FFT, DCT, thinning (or skeletonisation), edge detection and contrast enhancement. These are usually implemented in software but may also use special purpose hardware for speed. Image processing contrasts with computer graphics, which is usually more concerned with the generation of artificial images, and visualisation, which attempts to understand (real-world) data by displaying it as an artificial image (e.g. a graph). Image processing is used in image recognition and computer vision. See also Pilot European Image Processing Archive.
- imaginary number — Also called imaginary, pure imaginary number. a complex number having its real part equal to zero.
- immeasurableness — The state or condition of being immeasurable.
- immelmann (turn) — a maneuver in which an airplane is half looped to an upside-down position and then half rolled back to normal, upright flight: used to gain altitude while reversing direction
- immersion course — an educational course that teaches a foreign language, and in which the lessons are entirely conducted in the foreign language
- immersion heater — a small electric coil used to heat a liquid, as a cup of water, in which it is immersed.
- immigration laws — regulations on incoming foreigners
- immoral earnings — money earned from work that transgresses accepted moral or legal rules
- immunocompromise — (medicine) The state of having a compromised immune system.
- immunodepressant — preventing or diminishing the immune response
- immunomodulatory — (medical) Having the ability to alter or regulate immune functions.
- immunoregulation — (immunology) The control of immune responses between lymphocytes and macrophages.
- immunoregulatory — Of or pertaining to immunoregulation.
- immunosuppressed — the inhibition of the normal immune response because of disease, the administration of drugs, or surgery.
- immunosuppressor — (pharmacology) An immunosuppressive agent.
- impact extrusion — an extrusion process in which a slug of cold metal in a shallow die cavity is formed by the action of a rapidly moving punch that forces the metal through the die or back around the punch.
- impenetrableness — The quality of being impenetrable.
- imperceptiveness — The quality of being imperceptive.
- imperfect fungus — a fungus for which only the asexual reproductive stage is known, as any fungus of the Fungi imperfecti.
- imperfectiveness — (grammar) The state or quality of being imperfective.
- imperishableness — The characteristic or property of being imperishable.
- implied warranty — a warranty not stated explicitly by the seller of merchandise or real property but presumed for reasons of commercial or legal custom (distinguished from express warranty).
- in general terms — generally, approximately
- in large measure — If something is true in some measure or in large measure, it is partly or mostly true.
- in living memory — If you say that something is, for example, the best, worst, or first thing of its kind in living memory, you are emphasizing that it is the only thing of that kind that people can remember.