12-letter words containing r, o, s, e, n
- archenterons — Plural form of archenteron.
- archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
- arfvedsonite — a type of hornblende with the composition Na3(Fe,Mg)4FeSi8O22(OH)2
- ariel sharon — Ariel, 1928–2014, Israeli military and political leader; prime minister 2001–06.
- aristophanes — ?448–?380 bc, Greek comic dramatist, who satirized leading contemporary figures such as Socrates and Euripides. Eleven of his plays are extant, including The Clouds, The Frogs, The Birds, and Lysistrata
- aristotelian — of or relating to Aristotle or his philosophy
- arseniferous — Lb geology Containing or producing arsenic.
- arseno group — the bivalent group −As=As−.
- arsenopyrite — a white or grey metallic mineral consisting of a sulphide of iron and arsenic that forms monoclinic crystals with an orthorhombic shape: an ore of arsenic. Formula: FeAsS
- assertations — Plural form of assertation.
- asseveration — the act of asseverating.
- assortedness — the position of being sorted, grouped or harmonized with, well or badly, or provided with a good or bad assortment or mixture
- asynchronies — a lack of synchronism or coincidence in time.
- attorneyship — The office or profession of an attorney.
- austronesian — of or relating to Austronesia, its peoples, or their languages
- autochangers — Plural form of autochanger.
- bacon-slicer — a machine for cutting bacon into slices
- baker's oven — an oven used esp for baking bread
- banksia rose — a climbing rose, Rosa banksiae, native to China, having long, serrated leaves and white or yellow flowers.
- barnstormers — Plural form of barnstormer.
- battlefronts — Plural form of battlefront.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- bean-shooter — peashooter.
- beardtongues — Plural form of beardtongue.
- beta orionis — Rigel
- beta version — beta testing
- bichon frise — a small white poodle-like dog of European origin, with a silky, loosely curling coat
- body scanner — a machine using X-rays and a computer, used in medicine to look for signs of disease, or in security operations to look for drugs, weapons, etc
- bognor regis — a resort in S England, in West Sussex on the English Channel: electronics industries. Regis was added to the name after King George V's convalescence there in 1929. Pop: 62 141 (2001)
- bond servant — a person who serves in bondage; slave.
- bonus number — (in the National Lottery) a number announced after the normal six numbers which influences the amount of prize money paid
- bosom friend — an intimate friend
- bourbon rose — a hybrid rose, Rosa borboniana, having dark, carmine-colored flowers, cultivated in many horticultural varieties.
- bourne shell — (sh, Shellish). The original command-line interpreter shell and script language for Unix written by S.R. Bourne of Bell Laboratories in 1978. sh has been superseded for interactive use by the Berkeley C shell, csh but still widely used for writing shell scripts. There were even earlier shells, see glob. [Details?]
- brainstormer — a person who brainstorms
- brassfounder — a person who makes things from brass
- brisbane box — a broad-leaved evergreen tree, Tristania conferta, native to Australia, having a deciduous outer bark.
- bronchoscope — an instrument for examining and providing access to the interior of the bronchial tubes
- broncobuster — (in the western US and Canada) a cowboy who breaks in broncos or wild horses
- brooks range — a mountain range in N Alaska. Highest peak: Mount Isto, 2761 m (9058 ft)
- browser skin — a changeable decorative background for a browser
- buenos aires — the capital of Argentina, a major port and industrial city on the Río de la Plata estuary: became capital in 1880; university (1821). Pop: 13 349 000 (2005 est)
- by reason of — If one thing happens by reason of another, it happens because of it.
- byelorussian — Byelorussian means belonging or relating to Byelorussia or to its people or culture.
- calorescence — the absorption of radiation by a body, subsequently re-emitted at a higher frequency (lower wavelength)
- cameraperson — a camera operator
- canine corps — a military or law enforcement body which uses dogs for the detection of explosives or drugs or for security, tracking, etc
- canorousness — The quality of being musical.
- cantankerous — Someone who is cantankerous is always finding things to argue or complain about.
- carbon steel — steel whose characteristics are determined by the amount of carbon it contains