17-letter words containing l, e, o, n

not bat an eyelid — When something surprising or shocking happens, if someone doesn't bat an eyelid in British English, or doesn't bat an eye in American English, they remain calm and do not show any reaction.
not lift a finger — any of the terminal members of the hand, especially one other than the thumb.
not on your nelly — not under any circumstances; certainly not
not spare oneself — to exert oneself to the full
not the full quid — mentally subnormal
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 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 threshold — the point in war at which a combatant brings nuclear weapons into use
nuclear-free zone — any area in which nuclear weapons, power plants, or materials are not allowed.
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.
object complement — a word or a group of words used in the predicate following a factitive verb and referring to its direct object, as treasurer in We appointed him treasurer, white in They painted the house white, or an interesting speaker in They thought him an interesting speaker.
objectionableness — The quality of being objectionable.
occipital condyle — a protrusion on the occipital bone of the skull that forms a joint with the first cervical vertebra, enabling the head to move relative to the neck.
oceanographically — In terms of oceanography.
off one's trolley — trolley car.
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.
old contemptibles — the British expeditionary force to France in 1914
old norman french — Norman French (sense 1)
old red sandstone — a thick sequence of sedimentary rock (generally, but not always, red) deposited in Britain and NW Europe during the Devonian period
olympic peninsula — a large peninsula of W Washington
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 one's lonesome — on one's own
on someone's tail — following or shadowing someone closely
on the barrelhead — upon being presented for sale; at the time of delivery
on the half shell — served raw, with seasonings, on a half shell
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 size fits all — (of clothing) designed to fit people of a wide range of sizes.
one-parent family — A one-parent family is a family that consists of one parent and his or her children living together.
one-size-fits-all — (of clothing) designed to fit people of a wide range of sizes.
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.
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-channel flow — Open-channel flow is a liquid flow in a channel, which has a free liquid surface.
operation sealion — the codename for Hitler's proposed invasion (1940) of Great Britain
optical carrier n — (networking) (OC-n) A SONET rate of n times 51.84 megabits per second.
orange flower oil — neroli oil.
oregon crab apple — a shrub or small tree, Malus fusca, of the rose family, of the northwestern coast of North America, having hairy leaves, white flowers, and yellow or green oblong fruit.
organized militia — a former military organization functioning under both state and federal authority.
ortho-nitrophenol — any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
osculating circle — circle of curvature.
out in left field — Baseball. the area of the outfield to the left of center field, as viewed from home plate. the position of the player covering this area.
out of all reason — unreasonable
outline agreement — a contract, etc, setting out the preliminary terms or guidelines for an agreement; a preliminary agreement
overhead lighting — lighting which throws light downwards by being situated on the ceiling or having a downward shade, etc
overreach oneself — to fail because of trying to do more than one can

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