17-letter words containing m, o, n, a
- not mince matters — to speak frankly
- nothing more than — merely, solely
- 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.
- numerical control — control of a machine tool, or other device used in a manufacturing process, by a computer, other control circuitry, or recorded digital commands.
- office automation — a method or system of using automated or electronic equipment, as word processors and computers, in the operations of an office.
- old norman french — Norman French (sense 1)
- old-man-and-woman — houseleek (def 1).
- 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
- omnia vincit amor — love conquers all things
- omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
- on someone's back — criticizing or pestering someone
- on someone's tail — following or shadowing someone closely
- on speaking terms — the act, utterance, or discourse of a person who speaks.
- one-parent family — A one-parent family is a family that consists of one parent and his or her children living together.
- 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".
- onomatopoetically — the formation of a word, as cuckoo, meow, honk, or boom, by imitation of a sound made by or associated with its referent.
- open-end mortgage — a mortgage agreement against which new sums of money may be borrowed under certain conditions.
- 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 computing — (hardware) (Or "Optical Signal Processing") Operating on data represented using electromagnetic radiation, e.g. visible light, instead of the electrical signals used in a conventional electronic digital computer. Electronic digital computers are built from transistors. These form components that store data and logic gates that perform the low-level Boolean operations such as AND, OR and NOT that are the basis of all digital computation. The optical equivalent requires material with a non-linear refractive index such that light beams can interact with each other to perform the same Boolean operations. Though the photons that carry optical signals offer some theoretical advantages over the electrons that carry electronic signals, there are many practical problems that would have to be overcome before optical computing could compete in terms of cost, power and speed.
- organic chemistry — the branch of chemistry, originally limited to substances found only in living organisms, dealing with the compounds of carbon.
- organized ferment — ferment (def 1).
- organized militia — a former military organization functioning under both state and federal authority.
- orthogonal matrix — a matrix that is the inverse of its transpose so that any two rows or any two columns are orthogonal vectors
- 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.
- outline agreement — a contract, etc, setting out the preliminary terms or guidelines for an agreement; a preliminary agreement
- over-compensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
- overdetermination — the concept that a single emotional symptom or event, as a dream or a slip of the tongue, may be caused by more than one factor.
- oyer and terminer — (in some U.S. states) any of various higher criminal courts.
- packaging company — a company that packages goods on behalf of the producer
- palette of narmer — a king of Egypt identified by modern scholars as the Menes of tradition and depicted as the unifier of Upper and Lower Egypt on an ancient slate tablet (Narmer Palette or Palette of Narmer) c3200 b.c. with relief carvings on both sides.
- pan potentiometer — a control on a stereo sound mixing desk by means of which the relative levels in right- and left-hand channels can be adjusted and hence the apparent position of the recorded or broadcast sound source within the stereo panorama can be controlled
- panama canal zone — Canal Zone.
- 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
- 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
- per capita income — the total income of an area or country divided by the number of people in that area or country
- per procurationem — by one acting as an agent; by proxy.
- 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
- permanent account — A permanent account is an account which carries its balance and is kept open from year to year.
- permutation group — a mathematical group whose elements are permutations and in which the product of two permutations is the same permutation as is obtained by performing them in succession.
- pernicious anemia — Pernicious anemia is a very severe blood disease.
- 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
- phantom limb pain — a phenomenon characterized by the experience of pain, discomfort, or other sensation in the area of a missing limb or other body part, as a breast.