12-letter words containing a, e, g, r
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- argle-bargle — argy-bargy
- arm's-length — lacking intimacy or friendliness, esp when possessing some special connection, such as previous closeness
- arming chest — a chest for holding armor and weapons.
- arpeggiation — the writing, playing or singing of arpeggios
- arraignments — Plural form of arraignment.
- arrangements — preparatory measures taken or plans made; preparations
- arseno group — the bivalent group −As=As−.
- arteriograms — Plural form of arteriogram.
- ascertaining — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- asking price — The asking price of something is the price which the person selling it says that they want for it, although they may accept less.
- asparaginase — an enzyme used in treating leukaemia
- aspiringness — the condition of being aspiring
- assay groove — (in silverwork) a furrow left in a piece by the digging out of metal for assay.
- asseverating — Present participle of asseverate.
- astigmatizer — a cylindrical lens used in a rangefinder to draw out the point image of a point source into a line.
- astigmometer — an apparatus for measuring the degree of astigmatism.
- astringently — In the manner of an astringent.
- 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 effect — the spontaneous emission of an electron instead of a photon by an excited ion as a result of a vacancy being filled in an inner electron shell
- auger shower — a shower of electrons, photons, etc. resulting from the collision of primary cosmic rays with atomic nuclei in the atmosphere
- aurene glass — an iridescent American art glass colored gold and blue.
- autochangers — Plural form of autochanger.
- average life — the average time that an unstable particle or nucleus survives before it decays.
- axel heiberg — the largest island belonging to the Sverdrup group in the Canadian Northwest Territories. 15,779 sq. mi. (40,868 sq. km).
- backbreaking — demanding great effort; exhausting
- 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.
- badger plane — a plane for finishing rabbets or the like.
- badger skunk — hog-nosed skunk (def 1).
- badger state — any of various burrowing, carnivorous mammals of the family Mustelidae, as Taxidea taxus, of North America, and Meles meles, of Europe and Asia.
- badger-skunk — Also called badger skunk, rooter skunk. a large, naked-muzzled skunk, Conepatus mesoleucus, common in the southwestern U.S. and Mexico, having a black coat with one broad white stripe down the back and tail.
- bag snatcher — a thief whose main tactic is to grab women's handbags and run off with them
- ball bearing — Ball bearings are small metal balls placed between the moving parts of a machine to make the parts move smoothly.
- balladmonger — (formerly) a seller of ballads, esp on broadsheets
- bank charges — penalties charged by a bank to a customer, for example when the customer's account is overdrawn or if a cheque is not honoured
- bank manager — A bank manager is someone who is in charge of a bank, or a particular branch of a bank, and who is involved in making decisions about whether or not to lend money to businesses and individuals.
- barcalounger — a type of reclinable armchair with an extendable footrest
- bargain sale — an event at which goods are sold at low prices, usually to clear old stocks
- 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
- barking deer — muntjac.
- barley sugar — Barley sugar is a sweet made from boiled sugar.
- 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.
- base pairing — the hydrogen bonding that occurs between complementary nitrogenous bases in the two polynucleotide chains of a DNA molecule
- base-pairing — the process of binding separate DNA sequences by base pairs.
- 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