15-letter words containing a, g, i, o, r
- armour-piercing — capable of penetrating armour plate
- arrivals lounge — a waiting area for people meeting passengers
- astrobiologists — Plural form of astrobiologist.
- astronavigation — celestial navigation
- audio recording — an electronic recording of sound
- auditor general — (in Canada) a federal official responsible for auditing government departments and making an annual report
- autobiographers — Plural form of autobiographer.
- autobiographies — Plural form of autobiography.
- autolithography — a lithographic technique by which the artist draws or traces with a brush and pen directly on a stone or plate.
- autoradiographs — Plural form of autoradiograph.
- autoradiography — the technique or process of making autoradiographs.
- aviator glasses — sunglasses that look like goggles
- away-going crop — a crop planted by a tenant that matures after the expiration of the tenancy and is rightfully the tenant's to harvest.
- bacterial ghost — a bacterial cell that is emptied and filled artificially with another substance
- bacteriological — Of or relating to bacteriology or bacteria.
- bacteriophagous — Pertaining to the predation and consumption of bacterium.
- banking product — one of the various services offered by a bank to its customers: mortgages, loans, insurance etc
- bargain counter — a store counter on which goods are displayed for sale at reduced prices
- be raring to go — If you say that you are raring to go, you mean that you are very eager to start doing something.
- beat generation — members of the generation that came to maturity in the 1950s, whose rejection of the social and political systems of the West was expressed through contempt for regular work, possessions, traditional dress, etc, and espousal of anarchism, communal living, drugs, etc
- belgian griffon — one of a variety of the Brussels griffon having a black or reddish-brown and black coat.
- bibliographical — a complete or selective list of works compiled upon some common principle, as authorship, subject, place of publication, or printer.
- big bang theory — In astronomy the big bang theory is a theory that suggests that the universe was created as a result of an extremely large explosion.
- biobibliography — a bibliography containing biographical sketches of the authors listed.
- biostratigraphy — the examination of the ages of rock strata by using fossils
- bird of passage — If you refer to someone as a bird of passage, you mean that they are staying in a place for a short time before going to another place.
- blasting powder — a form of gunpowder made with sodium nitrate instead of saltpeter, used chiefly for blasting rock, ore, etc.
- blenheim orange — a type of apple tree bearing gold-coloured apples
- boarding school — A boarding school is a school which some or all of the pupils live in during the school term. Compare day school.
- body toning bar — a weighted exercise bar made of steel encased in a layer of foam, used for toning and strength training.
- bookmaking firm — an organization that accepts bets from gamblers and pays out winnings
- boston marriage — (especially in 19th-century New England) an intimate friendship between two women often maintaining a household together.
- branchiostegous — branchiostegal.
- breaking plough — a plough with a long shallow mouldboard for turning virgin land or sod land
- breeding season — the time of year during which animals breed
- bring to a head — to bring or be brought to a crisis
- cairngorm-stone — smoky quartz.
- california gull — a large gull, Larus californicus, of the western U.S.
- call for margin — a demand made by a stockbroker for partial payment of a client's debt due to decreasing value of the collateral
- call forwarding — a telephone service that allows incoming calls to be transferred automatically to another number or extension
- campaign ribbon — a distinctively colored ribbon, either on a small, narrow bar or in the form of a strip, representing a military campaign participated in by the wearer.
- campaign worker — a person who carries out duties for a political candidate or party, esp before an election
- canning factory — a building or group of buildings containing a plant assembly where food is sealed in cans or tins to preserve it
- carcinogenicity — any substance or agent that tends to produce a cancer.
- catastrophising — Present participle of catastrophise.
- catastrophizing — Present participle of catastrophize.
- categoricalness — The quality of being categorical, positive, or absolute.
- categorisations — Plural form of categorisation.
- categorizations — Plural form of categorization.
- category killer — a person, product, or business that dominates a particular market