17-letter words containing s, m, o

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.
nondiscriminating — differentiating; analytical.
nondiscrimination — an act or instance of discriminating, or of making a distinction.
nondiscriminatory — characterized by or showing prejudicial treatment, especially as an indication of bias related to age, color, national origin, religion, sex, etc.: discriminatory practices in housing; a discriminatory tax.
nonstoichiometric — (of a solid compound) having a composition in which the ratio of the atoms present is not a simple integer
nontrinitarianism — The religious belief that rejects the Christian concept of the trinity.
not mince matters — to speak frankly
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.
number seven iron — pitcher2 (def 3).
old contemptibles — the British expeditionary force to France in 1914
old people's home — An old people's home is a place where old people live and are cared for when they are too old to look after themselves.
old wives' summer — a period of fine, summerlike weather occurring in Europe in autumn.
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 one's lonesome — on one's own
on one's own time — the system of those sequential relations that any event has to any other, as past, present, or future; indefinite and continuous duration regarded as that in which events succeed one another.
on someone's back — criticizing or pestering someone
on someone's mind — occupying someone's thoughts
on someone's tail — following or shadowing someone closely
on speaking terms — the act, utterance, or discourse of a person who speaks.
one-time password — (security) (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms. The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly. See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".
opening arguments — the statements or arguments provided by lawyers at the beginning of a trial
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.
organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
otto von bismarck — Otto von [ot-oh von;; German aw-toh fuh n] /ˈɒt oʊ vɒn;; German ˈɔ toʊ fən/ (Show IPA), 1815–98, German statesman: first chancellor of modern German Empire 1871–90.
out of commission — the act of committing or entrusting a person, group, etc., with supervisory power or authority.
out of harm's way — If someone or something is out of harm's way, they are in a safe place away from danger or from the possibility of being damaged.
out of one's mind — (in a human or other conscious being) the element, part, substance, or process that reasons, thinks, feels, wills, perceives, judges, etc.: the processes of the human mind.
over-compensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
over-presumptuous — full of, characterized by, or showing presumption or readiness to presume in conduct or thought, as by saying or doing something without right or permission.
overhead camshaft — a camshaft in an automotive engine that is located in the cylinder head over the engine block rather than in the block. Abbreviation: OHC.
overstep the mark — If someone oversteps the mark, they behave in a way that is considered unacceptable.
pair of compasses — compass (def 7)
paleobiochemistry — the study of biochemical processes that occurred in fossil life forms.
parents anonymous — (in Britain) an association of local voluntary self-help groups offering help through an anonymous telephone service to parents who fear they will injure their children, or who have other problems in managing their children
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
passamaquoddy bay — an inlet of the Bay of Fundy, between Maine and New Brunswick, at the mouth of the St. Croix River.
pastoral symphony — the Symphony No. 6 in F major (1807–08) by Ludwig van Beethoven.
pay someone's way — to pay someone's share of the expenses
performance bonus — a monetary bonus paid to staff who have performed well in their job
performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
pernicious anemia — Pernicious anemia is a very severe blood disease.
persistent memory — non-volatile storage
personal computer — a compact computer that uses a microprocessor and is designed for individual use, as by a person in an office or at home or school, for such applications as word processing, data management, financial analysis, or computer games. Abbreviation: PC.
personnel manager — head of Human Resources department

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