16-letter words containing e, a, r, b, n
- 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.
- 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
- 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
- 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.
- paint-by-numbers — formulaic; showing no original thought or creativity
- pass-band filter — band-pass filter
- performance bond — contract bond.
- personal liberty — the liberty of an individual to do his or her will freely except for those restraints imposed by law to safeguard the physical, moral, political, and economic welfare of others.
- planetary nebula — an expanding shell of thin ionized gas that is ejected from and surrounds a hot, dying star of about the same mass as the sun; the gas absorbs ultraviolet radiation from the central star and reemits it as visible light by the process of fluorescence.
- platform-balance — a scale with a platform for holding the items to be weighed.
- presence chamber — the special room in which a great personage, as a sovereign, receives guests, holds audiences, etc.
- presentation box — a specially designed and attractive box to hold a product, and make it look more impressive
- proslambanomenos — the lowest note of the scale in ancient Greek music
- public relations — (used with a plural verb) the actions of a corporation, store, government, individual, etc., in promoting goodwill between itself and the public, the community, employees, customers, etc.
- rack one's brain — If you rack your brains, you try very hard to think of something.
- rag-and-bone man — a peddler who buys and sells used clothes, rags, etc.; junkman.
- rainbow lorikeet — a small Australasian parrot, Trichoglossus haematodus, with brightly-coloured plumage
- rainbow seaperch — an embiotocid fish, Hypsurus caryi, living off the Pacific coast of North America, having red, orange, and blue stripes on the body.
- raise an eyebrow — If something causes you to raise an eyebrow or to raise your eyebrows, it causes you to feel surprised or disapproving.
- rambunctiousness — difficult to control or handle; wildly boisterous: a rambunctious child.
- ramen profitable — If a startup business is ramen profitable, it is barely profitable, just enough to allow the founder to live on the cheapest diet.
- re-establishment — the act or an instance of establishing.
- reaction chamber — the chamber in a rocket engine in which the reaction or combustion of fuel occurs
- reaction turbine — a turbine driven by the reactive force of a fluid passing through the rotor blades.
- reasonable doubt — law: grounds for believing sb is innocent
- rectus abdominis — a long flat muscle that extends along the whole length of both sides of the abdomen. It flexes the vertebral column, particularly the lumbar portion; it also tenses the anterior abdominal wall and assists in compressing the abdominal contents
- redbank whiteoak — a city in S Tennessee.
- redistributional — a distribution performed again or anew.
- relative bearing — the bearing of an object, relative to the heading of a vessel or aircraft.
- renewable energy — any naturally occurring, theoretically inexhaustible source of energy, as biomass, solar, wind, tidal, wave, and hydroelectric power, that is not derived from fossil or nuclear fuel.
- republican party — one of the two major political parties in the U.S.: originated 1854–56.
- republican river — a river flowing E from E Colorado through Nebraska and Kansas into the Kansas River. 422 miles (680 km) long.
- reserve buoyancy — the difference between the volume of a hull below the designed waterline and the volume of the hull below the lowest opening incapable of being made watertight.
- rhythm and blues — a folk-based but urbanized form of black popular music that is marked by strong, repetitious rhythms and simple melodies and was developed, in a commercialized form, into rock-'n'-roll.
- rhythm-and-blues — a folk-based but urbanized form of black popular music that is marked by strong, repetitious rhythms and simple melodies and was developed, in a commercialized form, into rock-'n'-roll.
- ribonucleic acid — RNA.
- right honourable — (in Britain and certain Commonwealth countries) a title of respect for a Privy Councillor or an appeal-court judge
- rough and tumble — characterized by violent, random, disorderly action and struggles: a rough-and-tumble fight; He led an adventuresome, rough-and-tumble life.