17-letter words that end in s
- lord of the flies — a novel (1954) by William Golding.
- lymphadenopathies — Plural form of lymphadenopathy.
- lymphocytopoiesis — Lymphopoiesis.
- lyon king of arms — the chief herald of Scotland
- 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)
- machado y morales — Gerardo [he-rahr-th aw] /hɛˈrɑr ðɔ/ (Show IPA), 1871–1939, president of Cuba 1925–33.
- macro-linguistics — a field of study concerned with language in its broadest sense and including cultural and behavioral features associated with language.
- macroinstructions — Plural form of macroinstruction.
- magellanic clouds — either of two irregular galactic clusters in the southern heavens that are the nearest independent star system to the Milky Way.
- maintenance costs — the costs associated with keeping a road, building, vehicle, or machine in good condition by regularly checking it and repairing it when necessary
- make no apologies — If you say that you make no apologies for what you have done, you are emphasizing that you feel that you have done nothing wrong.
- management skills — skills regarding the technique, practice, or science of managing a company, business, etc
- manicure scissors — scissors for manicuring or trimming the nails
- marais des cygnes — a river in E central Kansas and W Missouri, flowing SE to the Osage River. 150 miles (241 km) long.
- mare fecunditatis — (Sea of Fertility) a dark plain in the fourth quadrant and extending into the first quadrant of the face of the moon: about 160,000 sq. mi. (415,000 sq. km).
- mariner's compass — a compass used for navigational purposes, consisting of a pivoted compass card in a gimbal-mounted, nonferrous metal bowl.
- marital relations — a euphemistic term for sexual intercourse between married partners
- marquesas islands — a group of volcanic islands in the S Pacific, in French Polynesia. Pop: 8712 (2002). Area: 1287 sq km (497 sq miles)
- mascarene islands — a group of islands in the Indian Ocean, E of Madagascar, including Mauritius, Reunion, and Rodrigues.
- maxwell equations — equations developed by James Clerk Maxwell (1831–79) upon which classical electromagnetic theory is based
- mean-spiritedness — the quality of being mean-spirited
- meat and potatoes — If you refer to the meat and potatoes of something, you mean its most basic, simple, and essential parts.
- meat-and-potatoes — fundamental; down-to-earth; basic: What are the meat-and-potatoes issues of the election?
- mend one's fences — a barrier enclosing or bordering a field, yard, etc., usually made of posts and wire or wood, used to prevent entrance, to confine, or to mark a boundary.
- mesembryanthemums — Plural form of mesembryanthemum.
- metallofullerenes — Plural form of metallofullerene.
- microconstituents — a microscopically small constituent of a metal or alloy.
- microinstructions — Plural form of microinstruction.
- micromanipulators — Plural form of micromanipulator.
- microsoft windows — (operating system) Microsoft's proprietary window system and user interface software released in 1985 to run on top of MS-DOS. Widely criticised for being too slow (hence "Windoze", "Microsloth Windows") on the machines available then. The 1996 market share of operating systems was: DOS/Windows 70% Windows 95 15% Windows NT 2% Other 13% Versions include 1985 Windows 1, 1987 Windows 2, 1987 Windows/386, 1990 Windows 3.0, 1992 Windows 3.1, 1992 Windows for Workgroups 3.1, 1993 Windows 3.11, 1993 Windows for Workgroups 3.11, 1993 Windows NT 3.1, 1994 Windows NT 3.5, 1995 Windows 95, 199? Windows NT 4, 1998 Windows 98, Windows NT 5, Windows XP, Windows 7, Windows 8.
- midsummer madness — a temporary lapse into foolishness, senseless behavior, folly, etc., especially during the summer: His plan to become a beachcomber is midsummer madness.
- midterm elections — elections held halfway through the term of office of a president during which governors, etc, but not a president, are elected
- mill on the floss — a novel (1860) by George Eliot.
- mis en bouteilles — (of a wine) bottled by a specified château, shipper, etc.
- misappropriations — Plural form of misappropriation.
- miscellaneousness — Quality of being miscellaneous.
- miscommunications — Plural form of miscommunication.
- misorganization's — the act or process of organizing.
- miss lonelyhearts — a novel (1933) by Nathanael West.
- misunderstandings — Plural form of misunderstanding.
- mountain sickness — illness caused by being at high altitude
- move one's bowels — to pass waste matter from the large intestine; defecate
- multimillionaires — Plural form of multimillionaire.
- multiple neuritis — polyneuritis.
- multitudinousness — The state or condition of being multitudinous.
- muscae volitantes — floater (def 6).
- mustard and cress — Mustard and cress is very young mustard plants and cress plants grown together and eaten in salad.
- 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.
- natural harmonics — harmonics of a note produced on a stringed instrument by lightly touching an open or unstopped sounded string.
- natural resources — a naturally occurring source of wealth, as land or water.