16-letter words containing a, n, r
- hit-and-run raid — a raid relying on surprise allied to a rapid departure from the scene of operations for the desired effect
- holier-than-thou — obnoxiously pious; sanctimonious; self-righteous.
- horizon distance — Television. the distance of the farthest point on the earth's surface visible from a transmitting antenna.
- horizontal plane — flat surface parallel to the horizon
- horizontal union — a labor union organized by skills or trades of its members rather than by industries.
- horseback riding — activity: riding a horse
- horsehair fungus — an edible white, striated, umbrella-capped mushroom, Marasmius rotula, commonly found in eastern North America.
- horsehead nebula — a dark nebula in the constellation Orion, composed of opaque cosmic dust and resembling the head of a horse.
- horseshoe magnet — a horseshoe-shaped permanent magnet.
- hospital corners — 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 and bothered — having or giving off heat; having a high temperature: a hot fire; hot coffee.
- housing shortage — a deficiency or lack in the number of houses needed to accommodate the population of an area
- huevos rancheros — a Latin American dish of eggs, usually fried or poached, topped with a spicy tomato sauce and sometimes served on a fried corn tortilla with the addition of vegetables and cheese.
- hundred-year-old — of one hundred years of age
- hurricane season — annual cyclone period
- 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.
- 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.
- hydrocyanic acid — a colorless, highly poisonous liquid, HCN, an aqueous solution of hydrogen cyanide.
- 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 cyanide — a colorless poisonous gas, HCN, having a bitter almondlike odor: in aqueous solution it forms hydrocyanic acid.
- hydroxylammonium — (inorganic compound) The univalent NH3OH+ cation, derived from hydroxylamine.
- hyperandrogenism — (medicine) An abnormally high production of androgens.
- hyperconjugation — (organic chemistry) A weak form of conjugation in which single bonds interact with a conjugated system.
- 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.
- hypermasculinity — pertaining to or characteristic of a man or men: masculine attire.
- hyperoxygenation — to treat, combine, or enrich with oxygen: to oxygenate the blood.
- hyperreal number — any of the set of numbers formed by the addition of infinite numbers and infinitesimal numbers to the set of real numbers
- hypersexualizing — Present participle of hypersexualize.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hyperventilating — Present participle of hyperventilate.
- hyperventilation — excessively rapid and deep breathing.
- hypervitaminosis — an abnormal condition caused by an excessive intake of vitamins.
- hyponitrous acid — an unstable, crystalline acid, H 2 N 2 O 2 .
- icositetrahedron — a solid figure having 24 faces.
- icterine warbler — a European variety of tree warbler (Hippolais icterina )
- if it wasn't for — If you talk about what would happen if it wasn't for someone or something, you mean that they are the only thing that is preventing it from happening.
- 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 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