17-letter words containing a, b, n, o, r
- honorable mention — a citation conferred on a contestant, exhibit, etc., having exceptional merit though not winning a top honor or prize.
- hottentot's bread — elephant's-foot.
- hydrofluorocarbon — Any of a class of partly chlorinated and fluorinated hydrocarbons, used as an alternative to chlorofluorocarbons in foam production, refrigeration, and other processes.
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- i beg your pardon — You say 'Pardon?' or 'I beg your pardon?' or, in American English, 'Pardon me?' when you want someone to repeat what they have just said because you have not heard or understood it.
- impressionability — easily impressed or influenced; susceptible: an impressionable youngster.
- in broad daylight — openly, in full public view
- in double harness — in a harness for two animals pulling the same carriage, plow, etc.
- in the background — behind the focus of attention
- incubation period — the period between infection and the appearance of signs of a disease.
- inertial observer — a hypothetical observer who is not accelerated with respect to an inertial system. Newton's laws of motion and the special theory of relativity apply to the measurements which would be made by such observers
- insectivorous bat — any bat of the suborder Microchiroptera, typically having large ears and feeding on insects. The group includes common bats (Myotis species), vampire bats, etc
- insupportableness — The state of being insupportable; insufferableness.
- insurmountability — incapable of being surmounted, passed over, or overcome; insuperable: an insurmountable obstacle.
- interlibrary loan — a system by which one library obtains a work for a user by borrowing it from another library.
- internet backbone — (communications, networking) High-speed networks that carry Internet traffic. These communications networks are provided by companies such as AT&T, GTE, IBM, MCI, Netcom, Sprint, UUNET and consist of high-speed links in the T1, T3, OC1 and OC3 ranges. The backbones carry Internet traffic around the world and meet at Network Access Points (NAPs). The topology of the "backbone" and its interconnections may once have resembled a spine with ribs connected along its length but is now almost certainly more like a fishing net wrapped around the world with many circular paths.
- into one's barrow — suited to one's interests or desires
- irrational number — a number that cannot be exactly expressed as a ratio of two integers.
- irreconcilability — incapable of being brought into harmony or adjustment; incompatible: irreconcilable differences.
- irrecoverableness — The quality of being irrecoverable.
- job advertisement — an announcement in a newspaper, on television, or on a poster about a post of employment
- john of salisbury — c1115–80, English prelate and scholar.
- keep your balance — If you keep your balance, for example when standing in a moving vehicle, you remain steady and do not fall over. If you lose your balance, you become unsteady and fall over.
- keyboard commando — (messaging) A bulletin board user who posts authoritatively on military or combat topics, but who has never served in uniform or heard a shot fired in anger. A poseur.
- lambda expression — (mathematics) A term in the lambda-calculus denoting an unnamed function (a "lambda abstraction"), a variable or a constant. The pure lambda-calculus has only functions and no constants.
- learned borrowing — a word or other linguistic form borrowed from a classical language into a modern language.
- least upper bound — an upper bound that is less than or equal to all the upper bounds of a particular set. 3 is the least upper bound of the set consisting of 1, 2, 3. Abbr.: lub.
- liberal education — an education based primarily on the liberal arts, emphasizing the development of intellectual abilities as opposed to the acquisition of professional skills.
- limousine liberal — a wealthy left-wing person
- lithium carbonate — a colorless crystalline compound, Li 2 CO 3 , slightly soluble in water: used in ceramic and porcelain glazes, pharmaceuticals, and luminescent paints.
- lombrosian school — a school of criminology, promulgating the theories and employing the methods developed by Lombroso.
- loose-leaf binder — a hard cover with metal rings inside which is used to hold loose pieces of paper
- macroinvertebrate — (zoology) An invertebrate that is large enough to be seen without the use of a microscope.
- madiba generation — the generation born around 1994, when Nelson Mandela became the first president of a multiracial South Africa
- membrane recovery — Membrane recovery is a process which uses membranes to obtain hydrogen from refinery fuel gas, hydrocrackers, and chemical processes such as methanol production.
- michigan bankroll — a large roll of paper money in small denominations.
- microdermabrasion — A cosmetic treatment in which the face is sprayed with exfoliant crystals to remove dead epidermal cells.
- microinvertebrate — An invertebrate of microscopic size.
- monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
- monkey bread tree — a bombacaceous tree, Adansonia digitata, native to Africa, that has a very thick trunk, large white flowers, and a gourdlike fruit with an edible pulp called monkey bread
- mount robson park — a national park in the Rocky Mountains of E British Columbia, Canada.
- naval observatory — an astronomical observatory located in Washington, D.C., operated by the U.S. government, and responsible for the U.S. time service.
- near-earth object — a comet or asteroid pushed by the gravitational attraction of nearby planets into an orbit that allows it to enter the earth's orbit and thereby pose a danger of collision. Abbreviation: NEO.
- neath port talbot — a county borough in S Wales, created from part of West Glamorgan in 1996. Administrative centre: Port Talbot. Pop: 135 300 (2003 est). Area: 439 sq km (169 sq miles)
- nervous breakdown — (not in technical use) any disabling mental disorder requiring treatment.
- neurobiologically — In terms of or by means of neurobiology.
- neurofibromatosis — a dominantly inherited genetic disorder characterized by flat brown patches on the skin, neurofibromas of the skin and internal organs, and in some cases skeletal deformity.
- never looked back — If you say that someone did something and then never looked back, you mean that they were very successful from that time on.
- 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
- non-biodegradable — capable of decaying through the action of living organisms: biodegradable paper; biodegradable detergent.