12-letter words containing o, u, t, n, a
- autorotation — the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent
- autoxidation — oxidation by exposure to atmospheric oxygen
- autumn olive — a spiny shrub (Elaeagnus umbellata) of the oleaster family, having leaves covered with silvery or brown scales
- averruncator — a long pair of shears used for pruning the higher branches of trees
- ayuntamiento — (in Spain) a municipal council
- back country — The back country is an area that is a long way from any city and has very few people living in it.
- backcourtman — any of the players stationed in the backcourt; a guard
- backsolution — The process or result of backsolving.
- bank account — A bank account is an arrangement with a bank which allows you to keep your money in the bank and to take some out when you need it.
- banquet room — A banquet room is a room in a hotel where large formal meals for many people can be held.
- barbados nut — an ornamental, tropical American tree, Jatropha curcas, of the spurge family, having ivylike leaves, small, yellow or greenish-yellow flowers, and olive-shaped fruit yielding a purgative, poisonous oil.
- basset hound — A basset hound is a dog with short strong legs, a long body, and long ears. It is kept as a pet or used for hunting.
- battleground — A battleground is the same as a battlefield.
- bayonet bulb — an electric light bulb which is inserted into the socket against spring pressure and turned so that pins on its side engage in slots in the socket
- bean counter — You can describe people such as accountants and business managers as bean counters if you disapprove of them because you think they are only interested in money.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- beardtongues — Plural form of beardtongue.
- beat up (on) — to give a beating to; thrash
- beaumontague — a cement-like substance used to fill in and hide cracks and holes in woodwork and metalwork
- beauty salon — A beauty salon is the same as a beauty parlour.
- bifunctional — having two functions
- binocularity — binocular characteristics
- bioturbation — the stirring of sediment by organisms
- black tongue — canine pellagra.
- blastulation — the process of blastula formation
- 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
- boatbuilding — Boatbuilding is the craft or industry of making boats.
- 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
- brontosaurus — any very large herbivorous quadrupedal dinosaur of the genus Apatosaurus, common in North America during Jurassic times, having a long neck and long tail: suborder Sauropoda (sauropods)
- bud mutation — a variation produced by a genetic alteration in the bud such that the seeds produced by the resulting growth perpetuate the change in succeeding generations.
- buffalo gnat — any of various small North American blood-sucking dipterous insects of the genus Simulium and related genera: family Simuliidae
- bunco artist — a confidence trickster or con artist
- burnt almond — a sweet consisting of an almond enclosed in burnt sugar
- burnt orange — of a dark orange colour, sometimes due to calcination of orange pigment
- button quail — any small quail-like terrestrial bird of the genus Turnix, such as T. sylvatica (striped button quail), occurring in tropical and subtropical regions of the Old World: family Turnicidae, order Gruiformes (cranes, rails, etc)
- cadent house — any of the four houses that precede the angles: the third, sixth, ninth, and twelfth houses, which correspond, respectively, to neighborhood and relatives, work and health, philosophy and foreign travel, and secret matters and service to others.
- calculations — Plural form of calculation.
- calumniation — to make false and malicious statements about; slander.
- calumniators — Plural form of calumniator.
- calumniatory — of, involving, or using calumny; slanderous; defamatory.
- cantankerous — Someone who is cantankerous is always finding things to argue or complain about.
- capitulation — the act of capitulating
- captiousness — The state of being captious.
- card counter — a casino player who memorizes or records which cards have been played in previous hands in order to calculate the odds on receiving winning cards or combinations from those remaining to be dealt, the practice often being held as illegal.
- cash account — an account with a brokerage which stipulates that the client pays in full for any transactions, rather than being extended credit
- catamountain — any of several wildcats, esp. the leopard or the European wildcat
- cater-cousin — a close friend
- causationism — the theory of universal causation