17-letter words containing a, d, g, e, n
- legendre equation — a differential equation of the form (1− x 2) d2y/dx2 − 2 xdy/dx + a (a + 1) y = 0, where a is an arbitrary constant.
- light in the head — dizzy; giddy
- litigation friend — a person acting on behalf of an infant or other person under legal disability
- livingstone daisy — a gardener's name for various species of Mesembryanthemum, esp M. criniflorum, grown as garden annuals (though several are perennial) for their brightly coloured showy flowers: family Aizoaceae
- longitudinal wave — a wave in which the direction of displacement is the same as the direction of propagation, as a sound wave.
- macdonnell ranges — a mountain system of central Australia, in S central Northern Territory, extending about 160 km (100 miles) east and west of Alice Springs. Highest peak: Mount Zeil, 1531 m (5024 ft)
- madiba generation — the generation born around 1994, when Nelson Mandela became the first president of a multiracial South Africa
- magellanic clouds — either of two irregular galactic clusters in the southern heavens that are the nearest independent star system to the Milky Way.
- magnetic meridian — a line on the earth's surface, passing in the direction of the horizontal component of the earth's magnetic field.
- managing director — manager who oversees a project
- manganese dioxide — a blackish, crystalline or powdery substance, MnO2, that is a strong oxidizing agent, used in making batteries, matches, etc.
- many-valued logic — the study of logical systems in which the truth-values that a proposition may have are not restricted to two, representing only truth and falsity
- marais des cygnes — a river in E central Kansas and W Missouri, flowing SE to the Osage River. 150 miles (241 km) long.
- marriage guidance — counselling for married couples
- mechanical digger — a machine used for excavation
- medulla oblongata — the lowest or hindmost part of the brain, continuous with the spinal cord.
- metatungstic acid — an oxyacid acid of tungsten. Formula: H2W4O13
- mid-oceanic ridge — the continuous, double-ridged chain of mountains on the ocean floor, extending through the middle of the Atlantic Ocean and into the Indian and Pacific oceans
- middle low german — Low German of the period c1100–c1500.
- middle management — the middle echelon of administration in business and industry.
- midmorning prayer — the third of the seven canonical hours; terce
- midsagittal plane — a plane passing through the nasion when the skull is oriented in the Frankfurt horizontal.
- mileage indicator — a device on a vehicle such as a car, plane, etc which indicates the number of miles travelled
- misunderstandings — Plural form of misunderstanding.
- modeling language — modelling language
- monkeygland sauce — a piquant sauce, made from tomatoes, ketchup, fruit chutney, garlic, spices, etc
- mundane astrology — the astrology of worldly events, in contrast to the astrology of the individual: used especially in interpretations and forecasts involving politics, the stock market, weather, and disasters.
- naked singularity — an infinitely dense point mass without a surrounding black hole
- negative feedback — Electronics. the process of returning part of the output of a circuit, system, or device to the input, either to oppose the input (negative feedback) or to aid the input (positive feedback) acoustic feedback.
- neurodegenerative — Resulting in or characterized by degeneration of the nervous system, especially the neurons in the brain.
- new england aster — a tall composite plant, Aster novae-angliae, of the northeastern U.S., the flowers of which have lavender to deep-purple rays.
- new england range — a plateau in New South Wales in SE Australia, in the Great Dividing Range, rising to 5000 feet (1524 meters).
- new guinea pidgin — the variety of Neo-Melanesian spoken in Papua New Guinea and neighbouring islands
- niger-kordofanian — a language family comprising Niger-Congo and Kordofanian.
- nightshade family — the plant family Solanaceae, characterized by herbaceous plants, trees, shrubs, and vines having alternate, simple or pinnate leaves, conspicuous flowers, and fruit in the form of a berry or capsule, and including belladonna, eggplant, nightshade, peppers of the genus Capsicum, petunia, potato, tobacco, and tomato.
- non-biodegradable — capable of decaying through the action of living organisms: biodegradable paper; biodegradable detergent.
- old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
- on a razor's edge — in an acute dilemma
- open-end mortgage — a mortgage agreement against which new sums of money may be borrowed under certain conditions.
- organized ferment — ferment (def 1).
- organized militia — a former military organization functioning under both state and federal authority.
- overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
- painted greenling — a greenling, Oxylebius pictus, inhabiting the Pacific coastal waters of North America, having a whitish body marked with black bands.
- paradise regained — an epic poem (1671) by John Milton.
- parking attendant — a person who works for a traffic control agency and who issues tickets for parking violations
- performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
- plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
- postural drainage — a therapy for clearing congested lungs by placing the patient in a position for drainage by gravity, often accompanied by percussion with hollowed hands.
- predatory pricing — If a company practises predatory pricing, it charges a much lower price for its products or services than its competitors in order to force them out of the market.
- prelingually deaf — deaf from birth or having acquired deafness before learning to speak