11-letter words containing o, a, r
- archilochus — 7th century bc, Greek poet of Paros, notable for using his own experience as subject matter
- archipelago — An archipelago is a group of islands, especially small islands.
- architector — (obsolete) An architect.
- archtraitor — A chief or transcendent traitor.
- arctic zone — the section of the earth's surface lying between the Arctic Circle and the North Pole.
- arcticology — the scientific study of the Polar Regions.
- arctophilia — the practice of collecting teddy bears
- arduousness — requiring great exertion; laborious; difficult: an arduous undertaking.
- area office — a part of a business, organization, etc which is the most important office in a specific geographical area
- arenicolous — growing or living in sand or sandy places
- areocentric — relating to a reference system which has Mars as its centre
- areographic — relating to areography
- aristocracy — The aristocracy is a class of people in some countries who have a high social rank and special titles.
- aristocrats — Plural form of aristocrat.
- aristoteles — a walled plain in the first quadrant of the face of the moon: about 60 miles (97 km) in diameter.
- arkeologist — Someone who studies the story of Noah's Ark, particularly by searching for physical evidence which would corroborate it.
- armageddons — Plural form of armageddon.
- armor plate — a protective covering of specially hardened steel plates, as on a tank
- armorbearer — a person who carried the armor or weapons of a warrior
- armored car — any of various vehicles covered with armor plate, as a truck for carrying money to or from a bank
- armory show — an international art show held in a New York City armory in 1913: considered a landmark in the public and critical acceptance of modern art.
- armour-clad — wearing armour
- arms akimbo — with hands on hips and elbows projecting outwards
- aroint thee — away! begone!
- arolla pine — a five-needled pine tree, Pinus cembra, found esp in mountain regions of Central Europe and yielding edible seeds
- aromaticity — the property of certain planar cyclic conjugated molecules, esp benzene, of behaving like unsaturated molecules and undergoing substitution reactions rather than addition as a result of delocalization of electrons in the ring
- aromatizing — Present participle of aromatize.
- aron kodesh — Holy Ark.
- arrestation — the slowing or stopping of the development or progress of something
- arrhenotoky — a form of parthenogenesis which produces only male offspring
- arrowheaded — Shaped like the head of an arrow; cuneiform; cuneatic.
- ars poetica — the art of poetry
- arse around — If you say that someone is arsing around or arsing about, you mean that they are behaving in a silly, irritating way instead of getting something done.
- arsonphobia — Pyrophobia.
- art college — a college at which students study and make art of various kinds, such as drawing, painting and sculpture
- art history — study of art through the ages
- art nouveau — Art Nouveau is a style of decoration and architecture that was common in the 1890s. It is characterized by flowing lines and patterns of flowers and leaves.
- art of love — Latin Ars Amatoria. a series of poems in three books (1? b.c.) by Ovid.
- arte povera — a style of minimal art originating in Italy in the late 1960s, making use of cheap and commonly available materials such as stones, newspapers etc
- arteriogram — an X-ray of a vein or artery which has been injected with dye in order to diagnose obstruction or damage
- arteriotomy — the surgical cutting of an artery or a cut made in an artery
- arthrectomy — surgical excision of a joint
- arthrodesis — the fusion of bones in a joint through surgery which causes immobility of the joint
- arthrograms — Plural form of arthrogram.
- arthropathy — a disease of a joint
- arthropodan — relating to arthropods
- arthroscope — a tubular instrument that is inserted into the capsule of a joint to examine the joint, extract tissue, etc
- arthroscopy — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- arthrospore — a sporelike cell of ascomycetous fungi and some algae produced by a breaking of the hyphae
- arthur monk — (James) Arthur ("Art") born 1957, U.S. football player.