11-letter words containing a, d, i, r, o
- arabinoside — a glycoside yielding arabinose when hydrolysed
- arachidonic — related to arachidonic acid or the derivatives of arachidonic acid
- arachnoidal — relating to the arachnoid
- archdiocese — An archdiocese is the area over which an archbishop has control.
- arthrodesis — the fusion of bones in a joint through surgery which causes immobility of the joint
- artiodactyl — any placental mammal of the order Artiodactyla, having hooves with an even number of toes; an even-toed ungulate. The order includes pigs, hippopotamuses, camels, deer, cattle, and antelopes
- arytenoidal — relating to the arytenoid cartilages in the larynx and also to other parts relating to them
- asteroidean — an echinoderm of the class Asteroidea, comprising the starfishes.
- attic order — a low pilaster of any order set into the cornice of a building
- audiometers — Plural form of audiometer.
- audiometric — the testing of hearing by means of an audiometer.
- auditoriums — Plural form of auditorium.
- auditorship — the position or function of auditor
- 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.
- autodialers — Plural form of autodialer.
- autodialler — Alternative spelling of autodialer.
- autowinders — Plural form of autowinder.
- 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
- azido group — the univalent group N 3 −, derived from hydrazoic acid.
- bacteroides — any of several rod-shaped, anaerobic bacteria of the genus Bacteroides, occurring in the alimentary and genitourinary tracts of humans and other mammals, certain species of which are pathogenic.
- barbie doll — a teenage doll with numerous sets of clothes and accessories
- base period — a neutral period used as a standard for comparison in constructing an index to express a variable factor: 100 is usually taken as the index number for the variable in the base period
- basidiocarp — the fruiting body of basidiomycetous fungi; the mushroom of agarics
- bilge board — a board lowered from the bilge of a sailing vessel to serve as a keel.
- binary code — Binary code is a computer code that uses the binary number system.
- birobidzhan — a city in SE Russia: capital of the Jewish Autonomous Region. Pop: 77 250 (2002)
- boatbuilder — A boatbuilder is a person or company that makes boats.
- bodhidharma — 6th century ad, Indian Buddhist monk, who taught in China (from 520): considered to be the founder of Zen Buddhism
- bordelaises — a brown sauce flavored with red wine and shallots and garnished with poached marrow and parsley.
- border raid — an incursion by attackers into a neighbouring country
- braggadocio — vain empty boasting
- branchiopod — any crustacean of the mainly freshwater subclass Branchiopoda, having flattened limblike appendages for swimming, feeding, and respiration. The group includes the water fleas
- bridal gown — a wedding dress
- bridal shop — a shop that specializes in selling bridal wear
- bridge loan — A bridge loan is money that a bank lends you for a short time, for example, so that you can buy a new house before you have sold the one you already own.
- bridgeboard — a board on both sides of a staircase that is cut to support the treads and risers
- broad river — a river in W North Carolina, flowing S to join the Saluda River, forming the Congaree River in South Carolina. 150 miles (241 km) long.
- brobdingnag — in Swift's Gulliver's Travels, a land inhabited by giants about 60 feet tall
- bromic acid — a colourless unstable water-soluble liquid used as an oxidizing agent in the manufacture of dyes and pharmaceuticals. Formula: HBrO3
- caddis worm — the wormlike larva of the caddis fly that usually lives in fresh water in an elongated case made of twigs, grains of sand, etc. cemented together with silk that it secretes: commonly used as bait by anglers
- caird coast — a region of Antarctica: a part of Coats Land on the SE coast of the Weddell Sea; now included in the British Antarctic Territory (claim suspended under the Antarctic Treaty of 1959)
- caparisoned — (of a horse) Having a richly ornamented harness.
- capernoited — capricious
- cardiectomy — excision of the heart.
- cardiodynia — pain in the heart region.
- cardiogenic — originating in the heart, or resulting from a disorder of the heart
- cardiograms — Plural form of cardiogram.
- cardiograph — an instrument for recording the mechanical force and form of heart movements
- cardiolipin — a lipid purified from bovine heart and used as an antigen for reacting with reagin, the Wassermann antibody, in the Wassermann diagnostic test for syphilis.
- cardiomotor — relating to the action of the heart