17-letter words containing a, n, t, h, r
- mental arithmetic — sums done in your head
- merchant of death — a company, nation, or person that sells military arms on the international market, usually to the highest bidder and without scruple or regard for political ramifications.
- merchant shipping — shipping which is involved in commerce (rather than defence, etc)
- mesembryanthemums — Plural form of mesembryanthemum.
- methyltransferase — any of a class of enzymes that catalyze the transfer of methyl groups from one molecule to another.
- microphanerophyte — any shrub or tree having a height of 2 to 8 metres
- mischaracterizing — Present participle of mischaracterize.
- miss lonelyhearts — a novel (1933) by Nathanael West.
- mitochondrial dna — DNA found in mitochondria, which contains some structural genes and is generally inherited only through the female line
- modern pentathlon — an athletic contest consisting of five different events: horse riding with jumps, fencing with electric épée, freestyle swimming, pistol shooting, and cross-country running
- monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
- monochromatically — of or having one color.
- montagu's harrier — a brownish European bird of prey, Circus pygargus, with long narrow wings and a long tail: family Accipitridae (hawks, harriers, etc)
- month after month — every month
- more than usually — You use more than usually to show that something shows even more of a particular quality than it normally does.
- mother of vinegar — mother2 .
- mount fairweather — a mountain in W North America, on the border between Alaska and British Columbia. Height: 4663 m (15 300 ft)
- myasthenia gravis — a disease of impaired transmission of motor nerve impulses, characterized by episodic muscle weakness and easy fatigability, especially of the face, tongue, neck, and respiratory muscles: caused by autoimmune destruction of acetylcholine receptors. Abbreviation: MG.
- nakhon ratchasima — a city in central Thailand.
- nathaniel currier — Nathaniel, 1813–88, U.S. lithographer. Compare Ives (def 4).
- national heritage — country's cultural legacy
- national seashore — an area of seacoast set aside and maintained by the U.S. government for purposes of recreation or wildlife study.
- natural harmonics — harmonics of a note produced on a stringed instrument by lightly touching an open or unstopped sounded string.
- natural hat trick — three goals scored in succession by one player in one game or one period.
- natural logarithm — a logarithm having e as a base. Symbol: ln.
- near-earth object — a comet or asteroid pushed by the gravitational attraction of nearby planets into an orbit that allows it to enter the earth's orbit and thereby pose a danger of collision. Abbreviation: NEO.
- neath port talbot — a county borough in S Wales, created from part of West Glamorgan in 1996. Administrative centre: Port Talbot. Pop: 135 300 (2003 est). Area: 439 sq km (169 sq miles)
- nephelometrically — By means of nephelometry.
- neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
- neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
- night after night — every night or for many successive nights
- nikita khrushchev — Nikita S(ergeyevich) [ni-kee-tuh sur-gey-uh-vich;; Russian nyi-kyee-tuh syir-gye-yuh-vyich] /nɪˈki tə sɜrˈgeɪ ə vɪtʃ;; Russian nyɪˈkyi tə syɪrˈgyɛ yə vyɪtʃ/ (Show IPA), 1894–1971, Russian political leader: premier of the U.S.S.R. 1958–64.
- nitroxanthic acid — picric acid.
- non-authoritarian — favoring complete obedience or subjection to authority as opposed to individual freedom: authoritarian principles; authoritarian attitudes.
- non-authoritative — having due authority; having the sanction or weight of authority: an authoritative opinion.
- non-thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- normal orthogonal — orthonormal.
- north lanarkshire — a council area of central Scotland: consists mainly of the NE part of the historical county of Lanarkshire; formerly (1974–96) part of Strathclyde Region: engineering and metalworking industries. Administrative centre: Motherwell. Pop: 321 820 (2003 est). Area: 1771 sq km (684 sq miles)
- north miami beach — a city in SE Florida.
- north-wall hammer — a type of ice axe that has a hammer as part of its head
- northcountrywoman — a female native or inhabitant of the North of England
- northeast by east — a point on the compass 11°15′ east of northeast. Abbreviation: NEbE.
- northeast passage — a ship route along the N coast of Europe and Asia, between the North Sea and the Pacific.
- northern michigan — the peninsula between lakes Superior and Michigan constituting the N part of Michigan. Abbreviation: U.P.
- northern rhodesia — former name of Zambia.
- northern sporades — a group of Greek islands in the Aegean, lying northeast of Euboea
- northwest passage — a ship route along the Arctic coast of Canada and Alaska, joining the Atlantic and Pacific oceans.
- not worth a whoop — worthless
- nothing more than — merely, solely
- nuclear chemistry — the branch of chemistry concerned with nuclear reactions