11-letter words containing r, a, i
- auditoriums — Plural form of auditorium.
- auditorship — the position or function of auditor
- auricularia — the bilaterally symmetrical, ciliated larva of a holothurian.
- auricularly — In an auricular manner.
- auriculated — (biology, rare) Having ears or appendages like ears; eared.
- aurignacian — of, relating to, or produced during a flint culture of the Upper Palaeolithic type characterized by the use of bone and antler tools, pins, awls, etc, and also by cave art and evidence of the beginnings of religion
- austerities — Plural form of austerity.
- australasia — Australia, New Zealand, and neighbouring islands in the S Pacific Ocean
- australiana — objects or documents relating to Australia and its history or culture esp in the form of a collection
- austronesia — the islands of the central and S Pacific, including Indonesia, Melanesia, Micronesia, and Polynesia
- authorising — Present participle of authorise.
- authorities — the power to determine, adjudicate, or otherwise settle issues or disputes; jurisdiction; the right to control, command, or determine.
- authorizing — Present participle of authorize.
- auto racing — the sport of racing automobiles in which drivers compete against each other on a course designed for racing or on closed public roads.
- auto-dialer — a telephone device that makes possible a service feature (au·to-dial) whereby a call is automatically made in response to a brief input signal from the user, as the pressing of a button.
- auto-erotic — producing sexual excitement or pleasure without association with another person or external stimulation.
- autocracies — Plural form of autocracy.
- autodialers — Plural form of autodialer.
- autodialler — Alternative spelling of autodialer.
- autoerotism — pleasurable sensations or tensions arising in the erogenous body zones without external stimulation
- autographic — of, for, or like an autograph or autographs
- automorphic — shaped and designed after oneself
- autotrophic — (of organisms such as green plants) capable of manufacturing complex organic nutritive compounds from simple inorganic sources such as carbon dioxide, water, and nitrates, using energy from the sun
- autowinders — Plural form of autowinder.
- autozeroing — (electronics) A sampling technique that measures an offset from zero and later compensates by subtracting the difference.
- auxiliaries — foreign or allied troops serving another nation; mercenaries
- auxochromic — any radical or group of atoms that intensifies the color of a substance.
- auxotrophic — designating or of a mutant organism requiring more nutritional substances than its prototrophic parent because it has lost the ability to make a certain enzyme
- aversion-to — a strong feeling of dislike, opposition, repugnance, or antipathy (usually followed by to): a strong aversion to snakes and spiders.
- avicularium — a protective zooid of a bryozoan colony, having movable jaws that can be snapped shut.
- avoirdupois — a system of weights used in many English-speaking countries. It is based on the pound, which contains 16 ounces or 7000 grains. 100 pounds (US) or 112 pounds (Brit) is equal to 1 hundredweight and 20 hundredweights equals 1 ton
- awash-river — a river in E Ethiopia, flowing NE through the Great Rift Valley to near the Djibouti border. 500 miles (805 km) long.
- awestricken — filled with awe.
- axisymmetry — any symmetry formed around an axis
- axonometric — of or relating to a projection method of representing three-dimensional objects on a flat surface
- azerbaijani — a native or inhabitant of Azerbaijan
- azido group — the univalent group N 3 −, derived from hydrazoic acid.
- azimuth bar — a device used in measuring azimuths, consisting of a bar with a sighting vane at each end,pivoted at its center, and rotating in a horizontal plane around the center of a compass.
- azoospermia — absence of spermatozoa in the semen
- azores high — a subtropical high centered near the Azores.
- baby sister — a younger sister
- baby-minder — a person who is paid to look after other people's babies or very young children
- baby-sitter — a person who takes care of a child or children while the parents are out
- babysitters — Plural form of babysitter.
- bacciferous — bearing berries
- baccivorous — feeding on berries
- bachelorism — bachelorhood
- bacilliform — shaped like a rod
- back boiler — a tank or series of pipes at the back of a fireplace for heating water
- back stairs — stairs at the back of a house, as for use by servants.