12-letter words containing r, i, c, e, o, a
- arborio rice — variety of round-grain rice used for making risotto
- archaeologic — Pertaining to archaeology.
- archdiocesan — Relating to an archdiocese.
- archdioceses — Plural form of archdiocese.
- archegoniate — having archegonia
- archeologist — archaeology.
- archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
- archesporium — archespore.
- archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
- archipelagos — Plural form of archipelago.
- archiphoneme — an abstract linguistic unit representing two or more phonemes when the distinction between these has been neutralized: conventionally shown by a capital letter within slashes, as /T/ for /t/ and /d/ in German Rat and Rad
- arctic ocean — the ocean surrounding the North Pole, north of the Arctic Circle. Area: about 14 100 000 sq km (5 440 000 sq miles)
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- army officer — a person in the army who holds a position of authority, responsibility and duty, especially one who holds a commission
- art director — a person responsible for the sets and costumes in a film
- artiodactyle — (zoology) One of the Artiodactyla, a group of ungulates.
- aspect ratio — the ratio of width to height of the picture on a television or cinema screen
- astrochemist — (chemistry, astronomy) A chemist or astronomer whose speciality is astrochemistry.
- asynchronies — a lack of synchronism or coincidence in time.
- atheoretical — having no connection with and not founded on theory
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atomic power — nuclear power.
- au contraire — on the contrary
- auctioneered — Simple past tense and past participle of auctioneer.
- autocritique — the examination of factors guiding one's thoughts, beliefs and actions; self-criticism
- autoinjector — A medical device designed to deliver a single dose of a particular, typically life-saving, drug.
- autoreactive — (immunology, medicine) Acting against the organism by which it was produced.
- bachelorship — the state of being a bachelor; bachelorhood
- 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
- barcoo river — a river in E central Australia, in SW Queensland: joins with the Thomson River to form Cooper Creek
- barometrical — (archaic) Relating to, or observed with, a barometer, barometric.
- bicollateral — (of a vascular bundle) having two phloem groups to the inside and outside, respectively, of the xylem
- bingo caller — the person who shouts out the numbers to bingo players
- biometrician — a person who is knowledgeable about biometry
- biomolecular — relating to a biomolecule
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- borosilicate — a salt of boric and silicic acids
- cabriole leg — a type of furniture leg, popular in the first half of the 18th century, in which an upper convex curve descends tapering to a concave curve
- calorie-free — containing no calories
- calorimeters — Plural form of calorimeter.
- calorimetric — the measurement of heat.
- campodeiform — resembling insects of the genus Campodea
- cancerphobia — an excessive fear of getting cancer
- canine corps — a military or law enforcement body which uses dogs for the detection of explosives or drugs or for security, tracking, etc
- canton river — Zhu Jiang.
- canyoneering — (US) Canyoning, a hybrid outdoor sport involving the traversal of river canyons.
- cape comorin — a headland at the southernmost point of India, in Tamil Nadu state