12-letter words containing a, c, o, m
- astigmoscope — astigmatoscope.
- astrochemist — (chemistry, astronomy) A chemist or astronomer whose speciality is astrochemistry.
- astrocompass — a navigational instrument for giving directional bearings from the centre of the earth to a particular star. It is carried in long-range aircraft, ships, spacecraft, etc
- astrocytomas — Plural form of astrocytoma.
- astrodynamic — Pertaining to astrodynamics.
- astronomical — If you describe an amount, especially the cost of something as astronomical, you are emphasizing that it is very large indeed.
- asymptomatic — If someone with a disease is asymptomatic, it means that they do not show any symptoms of the disease.
- asymptotical — of or relating to an asymptote.
- asynchronism — a lack of synchronism; occurrence at different times
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atomic clock — an extremely accurate clock in which an electrical oscillator is controlled by the natural vibrations of an atomic or molecular system such as caesium or ammonia
- atomic power — nuclear power.
- auction room — a room in a building where auctions take place
- autocomplete — a feature of a word processor, email program, web browser, etc., that automatically predicts the remaining characters in a word or phrase based on what has been typed or input before: If you supply the information, your browser will be able to use autocomplete to fill out online forms.
- automaticity — the condition of being automatic, or the degree of this
- autorhythmic — That generates its own rhythm.
- avitaminotic — of or relating to avitaminosis
- axiom schema — (logic) A formula in the language of an axiomatic system, containing one or more. These metasyntactic variables (or "schematic variables") that stand for terms or subformulae. An example is the Axiom of Comprehension.
- azithromycin — A macrolide antibiotic derived from erythromycin.
- back molding — a molding, as a backband, applied to interior window and door trim to conceal the edge of the wall surface.
- backcourtman — any of the players stationed in the backcourt; a guard
- backroom boy — You can refer to a man as a backroom boy when he does important work in an organization and has good ideas but is not seen or known about by the public.
- backswordman — a person who uses a backsword.
- backwoodsman — Backwoodsmen are people, especially politicians, who like the old ways of doing things, or who are involved in an organization at a local level.
- backwoodsmen — Plural form of backwoodsman.
- balsamaceous — any of various fragrant exudations from certain trees, especially trees of the genus Commiphora, as balm-of-Gilead. Compare balm (def 1).
- barodynamics — the branch of mechanics concerned with heavy structures
- barometrical — (archaic) Relating to, or observed with, a barometer, barometric.
- barrack room — a room inside a military barracks, esp one in which soldiers sleep
- bathochromic — denoting or relating to a shift to a longer wavelength in the absorption spectrum of a compound
- beach-comber — a person who lives by gathering salable articles of jetsam, refuse, etc., from beaches.
- beachcombers — Plural form of beachcomber.
- beachcombing — The action of a beachcomber.
- beam compass — an instrument for drawing large circles or arcs, consisting of a horizontal beam along which two vertical legs slide
- bibliomaniac — excessive fondness for acquiring and possessing books.
- biomagnetics — the study of magnetic fields as a form of therapy
- biomechanics — the study of the mechanics of the movement of living organisms
- biometrician — a person who is knowledgeable about biometry
- biomolecular — relating to a biomolecule
- black bottom — a dance of the late 1920s that originated in America, involving a sinuous rotation of the hips
- black comedy — a comedy dealing with an unpleasant situation in a pessimistic or macabre manner
- black cosmos — a garden plant, Cosmos diversifolius, of Mexico, having small, dahlialike tubers and solitary flower heads with red disk flowers and velvety, dark-red or purplish ray flowers.
- blastomycete — any of a genus (Blastomyces) of yeastlike imperfect fungi that cause diseases in people and animals
- body fascism — intolerance of those whose bodies do not conform to a particular view of what is desirable
- bomb factory — a site or building in which terrorists illicitly and secretly create bombs
- bombacaceous — of, relating to, or belonging to the Bombacaceae, a family of tropical trees, including the kapok tree and baobab, that have very thick stems, often with water-storing tissue
- bombe glacée — a dessert of ice cream lined or filled with custard, cake crumbs, etc
- book matches — safety matches made of paper and fastened into a small cardboard folder
- boxing match — a competition between two boxers
- bromoacetone — a colorless and highly toxic liquid, CH 2 BrCOCH 3 , used as a lachrymatory compound in tear gas and chemical warfare gas.