16-letter words containing n, e, o, r
- 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.
- humboldt current — a cold Pacific Ocean current flowing N along the coasts of Chile and Peru.
- hundred-year-old — of one hundred years of age
- hurricane season — annual cyclone period
- hyaloid membrane — the delicate, pellucid, and nearly structureless membrane enclosing the vitreous humor of the eye.
- hydration number — the number of molecules of water with which an ion can combine in an aqueous solution of given concentration.
- hydroferricyanic — (chemistry) Pertaining to, or containing, or obtained from, hydrogen, ferric iron, and cyanogen.
- 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.
- hyper-conformity — action in accord with prevailing social standards, attitudes, practices, etc.
- 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.
- hypercorrections — Plural form of hypercorrection.
- hypercorrectness — The state or condition of being hypercorrect.
- hyperinnervation — the act of innervating; state of being innervated.
- hyperoxygenation — to treat, combine, or enrich with oxygen: to oxygenate the blood.
- hyperstimulation — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- hyperventilation — excessively rapid and deep breathing.
- hypervitaminosis — an abnormal condition caused by an excessive intake of vitamins.
- i see no x here. — (games) Hackers (and the interactive computer games they write) traditionally favour this slightly marked usage over other possible equivalents such as "There's no X here!" or "X is missing." or "Where's the X?". This goes back to the original PDP-10 ADVENT, which would respond in this wise if you asked it to do something involving an object not present at your location in the game.
- icositetrahedron — a solid figure having 24 faces.
- 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.
- 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.
- 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
- 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.
- 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.
- in loco parentis — in the place or role of a parent.
- in the course of — If something happens in the course of a particular period of time, it happens during that period of time.
- in the long term — You use the expressions in the long term, in the short term, and in the medium term to talk about what will happen over a long period of time, over a short period of time, and over a medium period of time.
- in the nature of — essentially the same as; by way of
- in the region of — You say in the region of to indicate that an amount that you are stating is approximate.
- in the short run — to go quickly by moving the legs more rapidly than at a walk and in such a manner that for an instant in each step all or both feet are off the ground.
- in the throes of — If you are in the throes of doing or experiencing something, especially something difficult, you are busy doing it or are deeply involved in it.
- in the worst way — bad or ill in the highest, greatest, or most extreme degree: the worst person.
- in utero surgery — surgery performed on a fetus while it is in the womb.
- in working order — fully functioning
- in your own time — If you do something in your own time, you do it at the speed that you choose, rather than allowing anyone to hurry you.