13-letter words containing r, s
- aten asteroid — one of a small group of asteroids whose orbits cross that of the earth and whose semimajor axes are smaller than that of the earth.
- athenagoras i — (Aristocles Spyrou) 1886–1972, Archbishop Ecumenical of Constantinople and Ecumenical Patriarch of the Greek Orthodox Church 1948–72.
- atherogenesis — (medicine) The formation of atheromas, especially on the walls of the arteries.
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atrabilarious — Characterized by melancholy or gloom.
- atroceruleous — a deep blue-black color.
- atrociousness — The state of being atrocious.
- attested form — a linguistic form that can be shown to be in use or in written records
- attested herd — a herd of cattle, etc that has been certified as being free from a disease, esp from tuberculosis
- aubervilliers — an industrial suburb of Paris, on the Seine. Pop: 63 136 (1999)
- audiographics — audiographic teleconferencing
- aum shinrikyo — a syncretistic Japanese cult combining elements of Buddhism, Hinduism, and Christianity, founded by Shoko Asahara in 1986; responsible for a number of murders and in particular a nerve-gas attack on the Tokyo underground in 1995
- 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
- avant-gardism — the attitudes, techniques, etc., of the cultural avant-garde.
- average speed — a scalar measure of the rate of movement of a body expressed as the distance travelled divided by the time taken
- awe-inspiring — If you describe someone or something as awe-inspiring, you are emphasizing that you think that they are remarkable and amazing, although sometimes rather frightening.
- baby primrose — a tender primrose, Primula forbesii, native to China and Burma, having white, hairy leaves and rose- or lilac-colored flowers with a yellow center.
- baby snatcher — a person who steals a baby from its pram
- baby's-breath — a tall Eurasian caryophyllaceous plant, Gypsophila paniculata, bearing small white or pink fragrant flowers
- bachelor seal — a young male seal, esp a fur seal, that has not yet mated
- bachelorettes — Plural form of bachelorette.
- back pressure — the pressure that opposes the motion of a piston on its exhaust stroke in an internal-combustion engine
- back straight — a straight part of a circuit, esp of an athletics track or a racecourse, furthest from the finishing point
- backgrounders — Plural form of backgrounder.
- backing store — a computer storage device, usually a disk, that provides additional storage space for information so that it can be accessed and referred to when required and may be copied into the processor if needed
- backscratcher — an implement with a long handle, used for scratching one's back
- bacteriolysin — an antibody which, when it combines with bacterial cells, causes lysis of those cells, thus destroying them
- bacteriolysis — the destruction or disintegration of bacteria
- bacterioscopy — the examination of bacteria with a microscope.
- bacteriostats — Plural form of bacteriostat.
- bad godesberg — official name of Godesberg.
- bag of tricks — a container or receptacle of leather, plastic, cloth, paper, etc., capable of being closed at the mouth; pouch.
- bag of waters — a fluid-filled membranous sac in the pregnant uterus that encloses and cushions the fetus, normally breaking at or just before the time of birth; the amnion.
- baggagemaster — a person employed, especially by a railroad, bus company, or steamship line, to take charge of passengers' baggage.
- baker's dozen — thirteen
- baker's yeast — a yeast (Saccharomyces cerevisiae) used in baking as a leavening, as for certain breads
- balch springs — a town in NE Texas.
- ballet master — a man who teaches and rehearses the dancers in a ballet company
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source