16-letter words containing h, e, d, r, o
- have the drop on — a small quantity of liquid that falls or is produced in a more or less spherical mass; a liquid globule.
- head normal form — (theory, reduction) (HNF) A term describing a lambda expression whose top level is either a variable, a data value, a built-in function applied to too few arguments, or a lambda abstraction whose body is not reducible. I.e. the top level is neither a redex nor a lambda abstraction with a reducible body. An expression in HNF may contain redexes in argument postions whereas a normal form may not. Compare Weak Head Normal Form.
- headed notepaper — notepaper headed with the name and address of a person or organization
- hemorrhoidectomy — the surgical removal of hemorrhoids.
- heralds' college — a royal corporation in England, instituted in 1483, concerned chiefly with armorial bearings, genealogies, honors, and precedence.
- hermaphroditical — Alternative form of hermaphroditic.
- hernando de soto — Hernando [her-nan-doh;; Spanish er-nahn-daw] /hərˈnæn doʊ;; Spanish ɛrˈnɑn dɔ/ (Show IPA), or Fernando [fer-nan-doh;; Spanish fer-nahn-daw] /fərˈnæn doʊ;; Spanish fɛrˈnɑn dɔ/ (Show IPA), c1500–42, Spanish soldier and explorer in America.
- herod agrippa ii — died ?93 ad, king of territories in N Palestine (50–?93 ad). He presided (60) at the trial of Saint Paul and sided with the Roman authorities in the Jewish rebellion of 66
- heroin addiction — addiction to the drug heroin
- herringbone bond — a brickwork bond in which the exposed brickwork is bonded to the heart of the wall by concealed courses of bricks laid diagonally to the faces of the wall in a herringbone pattern, with the end of each brick butting against the side of the adjoining brick; a form of raking bond.
- heteropalindrome — Something that spells something else when reversed, a semordnilap.
- hexahydroaniline — cyclohexylamine.
- hexahydrobenzene — cyclohexane.
- high court judge — a judge who sits in the High Court
- higher education — education beyond high school, specifically that provided by colleges and graduate schools, and professional schools.
- hit one's stride — to walk with long steps, as with vigor, haste, impatience, or arrogance.
- hodmezovasarhely — a city in SE Hungary.
- hold a brief for — to argue for; champion
- holder condition — Lipschitz condition.
- homme d'affaires — a businessman.
- 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
- hookworm disease — any of certain bloodsucking nematode worms, as Ancylostoma duodenale and Necator americanus, parasitic in the intestine of humans and other animals.
- hopfield network — (artificial intelligence) (Or "Hopfield model") A kind of neural network investigated by John Hopfield in the early 1980s. The Hopfield network has no special input or output neurons (see McCulloch-Pitts), but all are both input and output, and all are connected to all others in both directions (with equal weights in the two directions). Input is applied simultaneously to all neurons which then output to each other and the process continues until a stable state is reached, which represents the network output.
- horizon distance — Television. the distance of the farthest point on the earth's surface visible from a transmitting antenna.
- horseback riding — activity: riding a horse
- horsehead nebula — a dark nebula in the constellation Orion, composed of opaque cosmic dust and resembling the head of a horse.
- horseradish tree — a tropical tree, Moringa pterygosperma, having fragrant white flowers and seeds yielding a commercially useful oil.
- hot and bothered — having or giving off heat; having a high temperature: a hot fire; hot coffee.
- hot buttered rum — a drink made with rum, hot water, and sugar, served with a lump of butter in a mug.
- household chores — tasks such as cleaning, washing, and ironing that have to be done regularly at home
- household troops — the infantry and cavalry regiments that carry out escort and guard duties for a head of state
- 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
- 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.
- hydroelectricity — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
- 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.
- hydrologic cycle — the natural sequence through which water passes into the atmosphere as water vapor, precipitates to earth in liquid or solid form, and ultimately returns to the atmosphere through evaporation.
- hydrometeorology — the study of atmospheric water, especially precipitation, as it affects agriculture, water supply, flood control, power generation, etc.
- hydrophyllaceous — belonging to the Hydrophyllaceae, the waterleaf family of plants.
- hydrostatic head — The hydrostatic head is the vertical height of a column of fluid.
- hyperandrogenism — (medicine) An abnormally high production of androgens.
- hyperchlorhydria — excessive secretion of hydrochloric acid in the stomach.
- hyperlipoidaemia — Alt form hyperlipoidemia.
- icositetrahedron — a solid figure having 24 faces.
- j. random hacker — (jargon) /J rand'm hak'r/ MIT jargon for a mythical figure; the archetypal hacker nerd. This may originally have been inspired by "J. Fred Muggs", a show-biz chimpanzee whose name was a household word back in the early days of TMRC, and was probably influenced by J. Presper Eckert (one of the co-inventors of the electronic computer). See random, Suzie COBOL.