12-letter words containing r, e, g, o
- archeologist — archaeology.
- archipelagos — Plural form of archipelago.
- area bombing — aerial bombing in which bombs are dropped over the general area of a target.
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- arpeggiation — the writing, playing or singing of arpeggios
- arseno group — the bivalent group −As=As−.
- arteriograms — Plural form of arteriogram.
- assay groove — (in silverwork) a furrow left in a piece by the digging out of metal for assay.
- astigmometer — an apparatus for measuring the degree of astigmatism.
- astrogeology — the study of the structure, composition, and history of other planets and other bodies in the solar system
- attenborough — Sir David. born 1926, British naturalist and broadcaster; noted esp for his TV series Life on Earth (1978), The Living Planet (1983), The Life of Birds (1998), The Life of Mammals (2002), and First Life (2010)
- auger shower — a shower of electrons, photons, etc. resulting from the collision of primary cosmic rays with atomic nuclei in the atmosphere
- autochangers — Plural form of autochanger.
- backgrounded — Simple past tense and past participle of background.
- backgrounder — A backgrounder is a short article in a newspaper or magazine that provides background information about a particular subject.
- bacteriology — Bacteriology is the science and the study of bacteria.
- balladmonger — (formerly) a seller of ballads, esp on broadsheets
- barcalounger — a type of reclinable armchair with an extendable footrest
- barge couple — either of a pair of outside rafters along the gable end of a roof
- barge course — the overhang of the gable end of a roof
- barrel organ — A barrel organ is a large machine that plays music when you turn the handle on the side. Barrel organs used to be played in the street to entertain people.
- baton charge — A baton charge is an attacking forward movement made by a large group of policemen carrying batons.
- battle group — a group of warships usually consisting of at least one aircraft carrier, other surface ships, submarines, landing craft, etc
- battleground — A battleground is the same as a battlefield.
- beardtongues — Plural form of beardtongue.
- bearing down — to hold up; support: to bear the weight of the roof.
- below ground — If something is below ground or below the ground, it is in the ground.
- benzal group — the bivalent group C 7 H 6 –, derived from benzaldehyde.
- benzyl group — the univalent group C 7 H 7 –, derived from toluene.
- bingo caller — the person who shouts out the numbers to bingo players
- biogeography — the branch of biology concerned with the geographical distribution of plants and animals
- black grouse — a large N European grouse, Lyrurus tetrix, the male of which has a bluish-black plumage and lyre-shaped tail
- blaze orange — a very bright orange, as on a traffic cone.
- blood orange — a variety of orange all or part of the pulp of which is dark red when ripe
- bog rosemary — any of several species (genus Andromeda) of evergreen shrubs of the heath family, native to cold bogs of North America and Europe, with pink flowers and narrow leaves
- bog-iron ore — a deposit of impure limonite formed in low, wet areas.
- 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)
- bogon filter — /boh'gon fil'tr/ Any device, software or hardware, that limits or suppresses the flow and/or emission of bogons. "Engineering hacked a bogon filter between the Cray and the VAXen, and now we're getting fewer dropped packets." See also bogosity.
- boilermaking — metal-working in heavy industry; plating or welding
- bonding wire — A bonding wire is a wire connecting two pieces of equipment, often for hazard prevention.
- bonnet rouge — a red cap worn by ardent supporters of the French Revolution
- boogie board — a small, flexible plastic surfboard, ridden lying down.
- boolean ring — a nonempty collection of sets having the properties that the union of two sets of the collection is a set in the collection and that the relative complement of each set with respect to any other set is in the collection.
- boomeranging — a bent or curved piece of tough wood used by the Australian Aborigines as a throwing club, one form of which can be thrown so as to return to the thrower.
- border guard — a guard stationed on a border between countries
- border light — a striplight hung upstage of a border, for lighting the stage.
- bottle gourd — an Old World cucurbitaceous climbing plant, Lagenaria siceraria, having large hard-shelled gourds as fruits
- bottle green — a deep green.
- bottle-green — Something that is bottle-green is dark green in colour.
- boulangerite — a bluish lead-gray mineral, lead antimony sulfide, Pb 5 Sb 4 S 11 , a minor ore of lead.