13-letter words containing a, s, t, u, r
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- architectures — Plural form of architecture.
- argentiferous — containing or bearing silver
- arseniuretted — combined with arsenic so as to form an arsenide.
- arteriovenous — of, relating to, or affecting an artery and a vein
- articulations — Plural form of articulation.
- assault rifle — a firearm that is capable of firing multiple rounds in a very short period
- astronautical — of or relating to astronautics or astronauts.
- atrabilarious — Characterized by melancholy or gloom.
- atroceruleous — a deep blue-black color.
- atrociousness — The state of being atrocious.
- australia day — a public holiday in Australia, commemorating the landing of the British in 1788: observed on January 26
- australianism — the Australian national character or spirit
- australianize — (esp of a new immigrant) to adopt or cause to adopt Australian habits and attitudes; integrate into Australian society
- austrian pine — an evergreen tree, Pina nigra austriaca
- austroasiatic — a family of languages spoken in SE Asia and the landsaround the Bay of Bengal and consisting principally of Vietnamese, Khmer, Mon, Khasi, Nicobarese, and the Munda languages.
- authorisation — Alternative spelling of authorization.
- auto-destruct — self-destruct.
- autocatharsis — a therapeutic process designed to free unconscious disturbances by having the patient write about his or her experiences, impressions, etc.
- autoeroticism — the arousal and use of one's own body as a sexual object, as through masturbation
- autoresponder — A program that automatically generates a set response to all messages sent to a particular e-mail address.
- autorickshaws — Plural form of autorickshaw.
- autumn crocus — a liliaceous plant, Colchicum autumnale, of Europe and N Africa having pink or purplish autumn flowers
- baluster stem — a stem of a drinking glass or the like having a gradual swelling near the top or bottom.
- banbury tarts — small baked pastries filled with raisins, currants, etc.
- band spectrum — a spectrum consisting of a number of bands of closely spaced lines that are associated with emission or absorption of radiation by molecules
- barcoo salute — a movement of the hand to brush flies away from the face
- barosinusitis — aerosinusitis.
- barrel cactus — any of several large, cylindrical, ribbed, spiny cacti of the genera Echinocactus and Ferocactus.
- bathurst burr — an Australian plant, Xanthium spinosum, having numerous hooked burrs that became entangled in sheep's wool
- battlecruiser — A large warship of a type built in the early 20th century, carrying similar armament to a battleship but faster and more lightly armored.
- battlegrounds — Plural form of battleground.
- beaux esprits — bel esprit
- beaux-esprits — plural of bel-esprit.
- bibliolatrous — characterized by bibliolatry
- biculturalism — the characteristics, or policy, of a two-cultured society
- birthday suit — If you are in your birthday suit, you are not wearing any clothes.
- biscuit bread — biscuits or a biscuit: I like biscuit bread more than corn bread for supper.
- black mustard — a Eurasian plant, Brassica (or Sinapsis) nigra, with clusters of yellow flowers and pungent seeds from which the condiment mustard is made: family Brassicaceae (crucifers)
- blast furnace — A blast furnace is a large structure in which iron ore is heated under pressure so that it melts and the pure iron metal separates out and can be collected.
- boutros-ghali — ˈBoutros (ˈbutroʊs ) ; bo̅oˈtrōs) 1922- ; Egypt. diplomat: secretary-general of the United Nations (1992-96)
- brachypterous — having very short or incompletely developed wings
- brain truster — a member of a brain trust; an important but usually unofficial adviser.
- breakthroughs — a military movement or advance all the way through and beyond an enemy's front-line defense.
- brown mustard — black mustard. See under mustard (def 2).
- buck sergeant — a newly promoted sergeant
- bureaucratese — wordy, jargon-filled, overcomplicated language considered typical of bureaucrats
- bureaucratism — an official of a bureaucracy.
- bureaucratist — a believer in bureaucracy
- burt standish — Burt L. pseudonym of Gilbert Patten.