12-letter words containing a, r, o, n, i
- autographing — Present participle of autograph.
- autoinjector — A medical device designed to deliver a single dose of a particular, typically life-saving, drug.
- autorotation — the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent
- azathioprine — a synthetic drug that suppresses the normal immune responses of the body and is administered orally during and after organ transplantation and also in certain types of autoimmune disease. Formula: C9H7N7O2S
- azithromycin — A macrolide antibiotic derived from erythromycin.
- baby monitor — a device that transmits sounds made by a baby to another room
- backcrossing — (genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent.
- bacon-slicer — a machine for cutting bacon into slices
- balloon tire — a wide, deep-walled pneumatic tire with relatively low air pressure to lessen the shock of bumps
- banderillero — a bullfighter's assistant who sticks banderillas into the bull
- banksia rose — a climbing rose, Rosa banksiae, native to China, having long, serrated leaves and white or yellow flowers.
- 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.
- barodynamics — the branch of mechanics concerned with heavy structures
- barrow point — the northernmost tip of Alaska, on the Arctic Ocean
- bearing down — to hold up; support: to bear the weight of the roof.
- beta orionis — Rigel
- beta version — beta testing
- binary color — secondary color.
- bingo caller — the person who shouts out the numbers to bingo players
- binocularity — binocular characteristics
- bio-organism — a dangerous fast-proliferating organism that could be used as the basis of a biological weapon
- bioastronomy — the branch of biology which deals with the study or the discovery of life forms on other planets or in space
- bioinorganic — pertaining to the biological activity of metal complexes and nonmetal compounds based on elements other than carbon (contrasted with bioorganic).
- biometrician — a person who is knowledgeable about biometry
- bioturbation — the stirring of sediment by organisms
- bipropellant — a rocket propellant consisting of two substances, usually a fuel and an oxidizer
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- bletheration — nonsense!
- 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
- 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.
- brain tumour — a tumour that is situated in the brain
- brainstormer — a person who brainstorms
- branch point — Electricity. a point in an electric network at which three or more conductors meet.
- 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
- brisbane box — a broad-leaved evergreen tree, Tristania conferta, native to Australia, having a deciduous outer bark.
- broad-minded — If you describe someone as broad-minded, you approve of them because they are willing to accept types of behaviour which other people consider immoral.
- broadcasting — Broadcasting is the making and sending out of television and radio programmes.
- brown bag it — to bring (one's own liquor) to a restaurant or club, especially one that has no liquor license.
- 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)