12-letter words containing a, n, o, r, g
- antigraviton — (mostly, scifi) The hypothetical antipartner of a graviton.
- antigropelos — waterproof leggings used to protect against mud
- antihydrogen — hydrogen in which the nucleus is an antiproton with an orbiting positron
- antireligion — opposed to religion
- apportioning — Present participle of apportion.
- apron string — a string for tying an apron on
- archegoniate — having archegonia
- area bombing — aerial bombing in which bombs are dropped over the general area of a target.
- arpeggiation — the writing, playing or singing of arpeggios
- arseno group — the bivalent group −As=As−.
- arsino group — the univalent group H 2 As−.
- astroturfing — a PR tactic used in politics and advertising in which actors are paid to display overt and apparently spontaneous grassroots support for a particular product, policy, or event
- 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)
- autochangers — Plural form of autochanger.
- autographing — Present participle of autograph.
- backcrossing — (genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent.
- 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.
- balladmonger — (formerly) a seller of ballads, esp on broadsheets
- barcalounger — a type of reclinable armchair with an extendable footrest
- barking frog — a robber frog, Hylactophryne augusti, of Texas, New Mexico, and Mexico, having a call like a dog's bark.
- barnstorming — A barnstorming performance is full of energy and very exciting to watch.
- 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.
- 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.
- benzal group — the bivalent group C 7 H 6 –, derived from benzaldehyde.
- bingo caller — the person who shouts out the numbers to bingo players
- bio-organism — a dangerous fast-proliferating organism that could be used as the basis of a biological weapon
- bioinorganic — pertaining to the biological activity of metal complexes and nonmetal compounds based on elements other than carbon (contrasted with bioorganic).
- 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
- boar-hunting — the practice of hunting wild boars
- boarding out — the local-authority practice of placing a client in a foster family or voluntary establishment and paying for it
- boardsailing — windsurfing
- boating trip — a trip or holiday in a boat such as a sailing boat or canal boat
- bodyboarding — the sport of surfing using a bodyboard
- bog-standard — If you describe something as bog-standard you mean that is an ordinary example of its kind, with no exciting or interesting features.
- boilermaking — metal-working in heavy industry; plating or welding
- 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.
- born-digital — relating to or noting documents, images, etc., that are created and managed in electronic form: electronic preservation of born-digital content; a born-digital e-book that will not be available in print.
- boulangerite — a bluish lead-gray mineral, lead antimony sulfide, Pb 5 Sb 4 S 11 , a minor ore of lead.
- bound charge — any electric charge that is bound to an atom or molecule (opposed to free charge).
- boxgrove man — a type of primitive man, probably Homo heidelbergensis, and probably dating from the Middle Palaeolithic period some 500 000 years ago; remains were found at Boxgrove in West Sussex in 1993 and 1995
- break ground — to do something that has not been done before
- bring action — to start a lawsuit
- bring around — If you bring someone around when they are unconscious, you make them become conscious again.
- bring to bay — to force into a position from which retreat is impossible