17-letter words containing e, n, r, o, i

northern bobwhite — any of several American quail of the genus Colinus, especially C. virginianus (northern bobwhite) having mottled reddish-brown, black, and white plumage.
northern kingfish — a croaker, Menticirrhus saxatilis, inhabiting Atlantic coastal waters of the U.S.
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 studfish — See under studfish.
norwegian current — an ocean current formed from the terminus of the North Atlantic Current, flowing N along the Norwegian coast into the Barents Sea.
not lift a finger — any of the terminal members of the hand, especially one other than the thumb.
not mince matters — to speak frankly
nothing more than — merely, solely
noun pre-modifier — a noun that occurs before and modifies another noun, as toy in toy store or tour in tour group.
nuclear isomerism — isomerism (def 2).
nuclear radiation — Physics. radiation in the form of elementary particles emitted by an atomic nucleus, as alpha rays or gamma rays, produced by decay of radioactive substances or by nuclear fission.
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 eight iron — a club with an iron head the face of which has more slope than a pitcher but less slope than a niblick.
number seven iron — pitcher2 (def 3).
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.
nursery education — education provided at a school for young children, usually from three to five years old
object identifier — (programming) (OID) Generally an implementation-specific integer or pointer that uniquely identifies an object.
observation tower — lookout, observation point
ocean engineering — the branch of engineering that deals with the development of equipment and techniques for the exploration of the ocean floor and exploitation of its resources.
oceanographically — In terms of oceanography.
odds-on favourite — a person, team, horse, etc that is regarded as the most likely to win a competition
off-year election — (in the US) an election held in a year when a presidential election does not take place
oil of turpentine — a colorless, flammable, volatile essential oil having a penetrating odor and a pungent, bitter taste, obtained from turpentine oleoresin by distillation: used in paints and varnishes, and in medicine as a carminative, vermifuge, expectorant, rubefacient, and, formerly, as a diuretic.
old age pensioner — An old age pensioner is a person who is old enough to receive an pension from their employer or the government.
omphalomesenteric — (anatomy) Of or pertaining to the umbilicus and mesentery.
on cruise control — If you say that someone is on cruise control in a contest, you mean that they are winning the contest easily and without needing to make a lot of effort.
on speaking terms — the act, utterance, or discourse of a person who speaks.
on the right foot — in an auspicious manner
on-street parking — parking (of a car, vehicle, etc) that is or is allowed to be done on a street
on-the-job injury — On-the-job injury is bodily harm that is caused while you are doing your job.
once over lightly — a hasty or superficial treatment, look, examination, etc.; once-over: The maid gave the room the once-over-lightly.
once-over-lightly — a hasty or superficial treatment, look, examination, etc.; once-over: The maid gave the room the once-over-lightly.
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".
online dictionary — a dictionary that is available on the Internet or World Wide Web and accessed through a Web browser using a computer or a mobile device, primarily by typing a query term into a search box on the site. Online dictionaries like Dictionary.com offer immediate, direct access through large databases to a word's spelling and meanings, plus a host of ancillary information, including its variant spellings, pronunciation, inflected forms, origin, and derived forms, as well as supplementary notes on matters of interest or concern about how the word is used: Some people think online dictionaries will make print dictionaries obsolete.
opening arguments — the statements or arguments provided by lawyers at the beginning of a trial
operating theatre — An operating theatre is a special room in a hospital where surgeons carry out medical operations.
operation sealion — the codename for Hitler's proposed invasion (1940) of Great Britain
operations centre — a centre where activities of a business, organization, etc, are administrated and take place
opisthobranchiate — (zoology) Of or pertaining to the Opisthobranchiata.
optical carrier n — (networking) (OC-n) A SONET rate of n times 51.84 megabits per second.
orange flower oil — neroli oil.
order of business — a task assigned or to be dealt with: Our first order of business is to reduce expenses.
organ-pipe cactus — a treelike or columnar cactus, Lemaireocereus marginatus, of Mexico, having a central, erect spine surrounded by spreading spines in clusters of five to eight, and funnel-shaped, brownish-purple flowers.
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.
origin of species — (On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life) a treatise (1859) by Charles Darwin setting forth his theory of evolution.
ortho-nitrophenol — any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.

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