16-letter words containing d, o, l, h
- get the lead out — Chemistry. a heavy, comparatively soft, malleable, bluish-gray metal, sometimes found in its natural state but usually combined as a sulfide, especially in galena. Symbol: Pb; atomic weight: 207.19; atomic number: 82; specific gravity: 11.34 at 20°C.
- gold star mother — an American woman whose son or daughter has died while serving in the United States Armed Forces
- gold-headed cane — a long thin stick with a curved or round top made of gold
- golden handcuffs — payments deferred over a number of years that induce a person to stay with a particular company or in a particular job
- golden handshake — a special incentive, as generous severance pay, given to an older employee as an inducement to elect early retirement.
- golden horseshoe — the urban and agricultural area surrounding Toronto.
- golden parachute — an employment contract or agreement guaranteeing a key executive of a company substantial severance pay and other financial benefits in the event of job loss caused by the company's being sold or merged.
- goldsmith beetle — a brilliant golden scarabaeid beetle, Cetonia aurata, of Europe.
- great horned owl — a large, brown-speckled owl, Bubo virginianus, common in the Western Hemisphere, having prominent ear tufts.
- gulf of honduras — an inlet of the Caribbean, on the coasts of Honduras, Guatemala, and Belize
- gulf of thailand — an arm of the South China Sea between the Malay Peninsula and Indochina
- haemodynamically — from a hemodynamic point of view
- half life period — Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate.
- half-blind joint — a corner dovetail joint visible on one face only.
- hardrock geology — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- 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.
- health education — education that aims to give people the information they need to live healthily
- health food shop — a shop which sells health foods
- heralds' college — a royal corporation in England, instituted in 1483, concerned chiefly with armorial bearings, genealogies, honors, and precedence.
- hermaphroditical — Alternative form of hermaphroditic.
- heteropalindrome — Something that spells something else when reversed, a semordnilap.
- hexahydroaniline — cyclohexylamine.
- hodmezovasarhely — a city in SE Hungary.
- hoek van holland — Hook of Holland.
- hold a brief for — to argue for; champion
- hold one's peace — the normal, nonwarring condition of a nation, group of nations, or the world.
- holder condition — Lipschitz condition.
- home health aide — a worker, usually trained and state-certified, who provides care for elderly, sick, or disabled people in their own home.
- homogenized milk — milk in which the fat globules are evenly distributed
- 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.
- horsehead nebula — a dark nebula in the constellation Orion, composed of opaque cosmic dust and resembling the head of a horse.
- hot cold-working — metalworking at considerable heat but below the temperature at which the metal recrystallizes: a form of cold-working.
- household chores — tasks such as cleaning, washing, and ironing that have to be done regularly at home
- household knight — bachelor (def 5).
- household troops — the infantry and cavalry regiments that carry out escort and guard duties for a head of state
- household-knight — an unmarried man.
- 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.
- hydroelectricity — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
- 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 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.
- hydroxylammonium — (inorganic compound) The univalent NH3OH+ cation, derived from hydroxylamine.
- hyperchlorhydria — excessive secretion of hydrochloric acid in the stomach.
- hyperlipoidaemia — Alt form hyperlipoidemia.
- hypoaeolian mode — a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from E to E, with the final on A.
- hypsilophodontid — An informal grouping of small ornithopod dinosaurs, regarded as fast, herbivorous bipeds on the order of 1\u20132 meters long (3.3-6.6 feet).