16-letter words containing r, a, b, o
- modacrylic fiber — any of various synthetic copolymer textile fibers, as Dynel, containing less than 85 percent but more than 35 percent of acrylonitrile.
- molybdate orange — a pigment consisting of a solid solution of sulfate, molybdate, and chromate compounds of lead.
- morris plan bank — a private banking organization, formerly common in the U.S., designed primarily to grant small loans to industrial workers.
- mossbauer effect — the phenomenon in which an atom in a crystal undergoes no recoil when emitting a gamma ray, giving all the emitted energy to the gamma ray, resulting in a sharply defined wavelength.
- mountain climber — someone who climbs or walks up mountains
- mulberry harbour — either of two prefabricated floating harbours towed across the English Channel to the French coast for the Allied invasion of Normandy in 1944
- nagorno-karabakh — a region in SW Azerbaijan: residents mostly Armenian. 1700 sq. mi. (4400 sq. km).
- national library — a library established and funded by a national government with the designation national, to serve the needs of this government, often to function as a library of record for the nation's publishing output, and in some cases to act as a central agency for library and bibliographic development in the nation.
- network database — (database) A kind of database management system in which each record type can have multiple owners, e.g. orders are owned by both customers and products. This contrasts with a hierarchical database (one owner) or relational database (no explicit owner).
- nibble mode dram — (storage) A standard DRAM where four successive bits can be clocked out of the single data line by successive pulses on the CAS\ line while RAS\ is active. A column address is only required for the first bit. This mode is now unfashionable but can be found on some older 64 kilobit and 256 kilobit chips.
- nitrogen balance — the difference between the amount of nitrogen taken in and the amount excreted or lost: used to evaluate nutritional balance.
- nitrous bacteria — bacteria that convert ammonia to nitrites in the soil
- non-attributable — to regard as resulting from a specified cause; consider as caused by something indicated (usually followed by to): She attributed his bad temper to ill health.
- non-bureaucratic — of, relating to, or characteristic of a bureaucrat or a bureaucracy; arbitrary and routine.
- non-carbohydrate — any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form the supporting tissues of plants and are important food for animals and people.
- non-extraditable — capable of being extradited; subject to extradition: an extraditable person.
- non-reconcilable — capable of being reconciled.
- non-transferable — to convey or remove from one place, person, etc., to another: He transferred the package from one hand to the other.
- nonbiodegradable — Not biodegradable.
- nondurable goods — goods that remain usable for, or must be replaced within, a relatively short period of time, as food, apparel, or fabrics
- nontransmissible — Not transmissible.
- nontransmittable — Not transmittable.
- north battleford — a city in W central Saskatchewan, in central Canada.
- north palm beach — a town in E Florida.
- northanger abbey — a novel (1818) by Jane Austen.
- norwegian buhund — a slightly-built medium-sized dog of a breed with erect pointed ears and a short thick tail carried curled over its back
- numbered account — a bank account whose owner is identified by a number for the purpose of preserving anonymity.
- objective danger — a danger, such as a stone fall or avalanche, to which climbing skill is irrelevant
- oblique triangle — any triangle that does not have a right angle (contrasted with right triangle).
- obsequent stream — a stream flowing in a direction opposite to that of the dip of the local strata.
- observation deck — an area on a high building that is surrounded with railings or fencing and which provides panoramic views
- observation post — a forward position, often on high ground, from which enemy activity can be observed and, particularly, from which artillery or mortar fire can be directed.
- observation ward — a ward in a hospital where patients are monitored
- observationalist — One who relies on empirical observations.
- observationality — The property of being observational.
- off off broadway — experimental or avant-garde drama produced in New York City, in small theaters, halls, churches, etc.
- off-off-broadway — experimental or avant-garde drama produced in New York City, in small theaters, halls, churches, etc.
- on a trial basis — for the purpose of assessment
- on her beam-ends — (of a vessel) heeled over through an angle of 90°
- on the breadline — impoverished; living at subsistence level
- onboard computer — onboard a vehicle, ship, plane, train or spacecraft
- one-armed bandit — slot machine (def 1).
- operating budget — money allocated to a project
- orbital velocity — the minimum velocity at which a body must move to maintain a given orbit.
- ordinary jubilee — the celebration of any of certain anniversaries, as the twenty-fifth (silver jubilee) fiftieth (golden jubilee) or sixtieth or seventy-fifth (diamond jubilee)
- organized labour — labour carried out by workers in trade unions, or the workers themselves
- outboard profile — an exterior side elevation of a vessel, showing all deck structures, rigging, fittings, etc.
- overexcitability — to excite too much.
- overurbanization — the act or fact of urbanizing, or taking on the characteristics of a city: Urbanization has led to more air pollution and increasing childhood asthma.
- oxidation number — the state of an element or ion in a compound with regard to the electrons gained or lost by the element or ion in the reaction that formed the compound, expressed as a positive or negative number indicating the ionic charge of the element or ion.