12-letter words containing i, o, a
- autoimmunity — (pathology, immunology) The condition where one's immune system attacks one's own tissues, i.e., an autoimmune disorder.
- autoinjector — A medical device designed to deliver a single dose of a particular, typically life-saving, drug.
- automaticity — the condition of being automatic, or the degree of this
- automatizing — Present participle of automatize.
- automobiling — (dated) present participle of automobile.
- automobilism — the use of automobiles, or the practices associated with them
- automobilist — Driver; person who uses a motor vehicle such as car, van or truck.
- automobility — the use of motor cars
- automorphism — the practice of seeing others as having the same characteristics as oneself
- autoptically — in an autoptical manner
- autoreactive — (immunology, medicine) Acting against the organism by which it was produced.
- autorhythmic — That generates its own rhythm.
- autorickshaw — (in India) a light three-wheeled vehicle driven by a motorcycle engine
- autorotation — the continuous rotation of a body in an airflow, such as that of the rotor blades of a helicopter in an unpowered descent
- autotheistic — Self-worshiping; prideful in the extreme.
- autotoxaemia — autointoxication.
- 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
- avariciously — characterized by avarice; greedy; covetous.
- avitaminosis — any disease caused by a vitamin deficiency in the diet
- avitaminotic — of or relating to avitaminosis
- avoidability — The possibility of avoiding; the state or condition of being avoidable.
- 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.
- axis of evil — North Korea, Iraq, and Iran when considered together as a perceived threat to world stability
- ayuntamiento — (in Spain) a municipal council
- 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.
- babingtonite — a rare, slightly magnetic, black or dark green silicate mineral, Ca2Fe2Si5O14OH, found in cavities in volcanic rock
- baby monitor — a device that transmits sounds made by a baby to another room
- bachelorship — the state of being a bachelor; bachelorhood
- back molding — a molding, as a backband, applied to interior window and door trim to conceal the edge of the wall surface.
- backcrossing — (genetics) The crossing of a hybrid with one of its parents or an individual genetically similar to its parent.
- backsolution — The process or result of backsolving.
- backstopping — a wall, wire screen, or the like, serving to prevent a ball from going too far beyond the normal playing area.
- bacon-slicer — a machine for cutting bacon into slices
- bacteriocide — Alternative form of bactericide.
- bacteriology — Bacteriology is the science and the study of bacteria.
- bacteriostat — any substance that arrests the growth or reproduction of bacteria but does not kill them
- ball of fire — a very lively person
- balletomania — passionate enthusiasm for ballet
- balloon sail — a large light bellying sail used in light winds
- balloon tire — a wide, deep-walled pneumatic tire with relatively low air pressure to lessen the shock of bumps
- balloon vine — a tropical tendril-climbing sapindaceous plant, Cardiospermum halicacabum, cultivated for its ornamental balloon-like seed capsules
- balto-slavic — the Baltic and Slavic languages, when considered as constituting a subfamily within the Indo-European family of languages: the Baltic and Slavic branches are now generally considered by scholars as independently derived from Indo-European
- banalization — the process of becoming or making something banal
- banderillero — a bullfighter's assistant who sticks banderillas into the bull
- bandoneonist — One who plays the bandoneon.
- bank deposit — money placed in a bank account
- bank holiday — A bank holiday is a public holiday.
- banksia rose — a climbing rose, Rosa banksiae, native to China, having long, serrated leaves and white or yellow flowers.