17-letter words containing s, i, a, l, o
- national security — defence of a country
- nationalist china — China, Republic of.
- nationalistically — In a nationalistic manner.
- natural harmonics — harmonics of a note produced on a stringed instrument by lightly touching an open or unstopped sounded string.
- natural selection — the process by which forms of life having traits that better enable them to adapt to specific environmental pressures, as predators, changes in climate, or competition for food or mates, will tend to survive and reproduce in greater numbers than others of their kind, thus ensuring the perpetuation of those favorable traits in succeeding generations.
- naval air station — military airbase for the navy
- navigation lights — lights on an aircraft
- neo-malthusianism — a view or doctrine advocating population control, especially by contraception.
- neo-scholasticism — a contemporary application of Scholasticism to modern problems and life.
- new lease on life — a contract renting land, buildings, etc., to another; a contract or instrument conveying property to another for a specified period or for a period determinable at the will of either lessor or lessee in consideration of rent or other compensation.
- nicholas bourbaki — the pseudonym of a group of mainly French mathematicians that, since 1939, has been producing a monumental work on advanced mathematics, Eléments de Mathématique
- nikolaus von cusa — Nicholas (def 1).
- non-assignability — capable of being specified: The word has no assignable meaning in our language.
- non-controversial — of, relating to, or characteristic of controversy, or prolonged public dispute, debate, or contention; polemical: a controversial book.
- non-institutional — of, relating to, or established by institution.
- non-instructional — the act or practice of instructing or teaching; education.
- non-materialistic — excessively concerned with physical comforts or the acquisition of wealth and material possessions, rather than with spiritual, intellectual, or cultural values.
- non-stereotypical — a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
- non-thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
- nonaccomplishment — Something that does not achieve the intended goal.
- nonconstitutional — of or relating to the constitution of a state, organization, etc.
- 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)
- nothing less than — You can use nothing less than to emphasize your next words, often indicating that something seems very surprising or important.
- nuclear isomerism — isomerism (def 2).
- nuclear-isomerism — Chemistry. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism) as CH 3 OCH 3 and CH 3 CH 2 OH, or in the arrangement of their atoms in space and therefore in one or more properties. Compare optical isomerism, stereoisomerism.
- objectionableness — The quality of being objectionable.
- off-site facility — An off-site facility is a facility which is not at the main industrial or commercial site.
- old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
- old south arabian — a group of four closely related Semitic languages, having a writing system and used from about the eighth to the fifth centuries b.c. in the southern part of Arabia.
- old spanish trail — an overland route from Santa Fe, N. Mex., to Los Angeles, Calif., first marked out in 1776 by Spanish explorers and missionaries.
- olympic mountains — a mountain range in NW Washington: part of the Coast Range. Highest peak: Mount Olympus, 2427 m (7965 ft)
- olympic peninsula — a large peninsula of W Washington
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- on someone's tail — following or shadowing someone closely
- one size fits all — (of clothing) designed to fit people of a wide range of sizes.
- one-size-fits-all — (of clothing) designed to fit people of a wide range of sizes.
- operation sealion — the codename for Hitler's proposed invasion (1940) of Great Britain
- opportunistically — adhering to a policy of opportunism; practicing opportunism.
- optical astronomy — the branch of observational astronomy using telescopes to observe or photograph celestial objects in visible light.
- optical isomerism — stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
- osculating circle — circle of curvature.
- otolaryngologists — Plural form of otolaryngologist.
- paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
- paleoconservative — a person advocating an older, traditional type of conservatism, especially in politics.
- papanicolaou test — Pap test.
- paradoxical sleep — REM sleep.
- parts per million — the number of units (of a substance) present in a million units of another substance
- pashmina politics — the adoption of political policies immediately after they have gone out of fashion
- patriarchal cross — a Latin cross having a shorter crosspiece above the customary one.
- peloponnesian war — a war between Athens and Sparta, 431–404 b.c., that resulted in the transfer of hegemony in Greece from Athens to Sparta.