16-letter words containing d, e, l, h
- 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.
- great-grandchild — a grandchild of one's son or daughter.
- grenade launcher — a device attached to the muzzle of a rifle, permitting the firing of rifle grenades.
- haemodynamically — from a hemodynamic point of view
- hailing distance — the distance within which the human voice can be heard: They sailed within hailing distance of the island.
- half life period — Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate.
- hand screw clamp — a screw that can be tightened by the fingers, without the aid of a tool.
- handling charges — a fee paid to cover the packaging, transport, etc, of a commodity
- hardrock geology — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- have a field day — If someone is having a field day, they are very busy doing something that they enjoy, even though it may be hurtful for other people.
- 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.
- heads-up display — an electronic display of data from instruments or other sources projected at eye level so that a driver or pilot sees it without looking away from the road or course. Abbreviation: HUD.
- health education — education that aims to give people the information they need to live healthily
- health food shop — a shop which sells health foods
- heavy with child — pregnant
- hendecasyllables — Plural form of hendecasyllable.
- 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.
- high-speed steel — an especially hard, heat-resistant steel for use in lathe tools and for other applications involving high friction and wear.
- himachal pradesh — a state in N India. 21,495 sq. mi. (55,673 sq. km). Capital: Shimla.
- 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.
- 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.
- hybrid perpetual — a type of cultivated rose bred from varieties having vigorous growth and more or less recurrent bloom.
- 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.
- hydraulic cement — cement that can solidify under water.
- hydroelectricity — pertaining to the generation and distribution of electricity derived from the energy of falling water or any other hydraulic source.
- 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.
- 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.