9-letter words containing os
- arccosine — the function the value of which for a given argument between –1 and 1 is the angle in radians (between 0 and π), the cosine of which is that argument: the inverse of the cosine function
- archosaur — any of a group of reptiles consisting of dinosaurs, pterosaurs, modern birds, modern crocodiles and extinct relatives of crocodiles, all having a diapsid skull
- areostyle — (of columned buildings) having a wide intercolumniation equal to four or more diameters of one of the columns
- aroostook — river in N Me., flowing into the St. John River in New Brunswick, Canada: c. 140 mi (225 km)
- arpeggios — Plural form of arpeggio.
- arthroses — Plural form of arthrosis.
- arthrosis — a bone joint which enables movement
- aryballos — a small narrow-necked vessel or bottle shaped like a sphere, used in ancient Greece to store oil or perfume
- ascospore — one of the spores (usually eight in number) that are produced in an ascus
- at a loss — If a business produces something at a loss, they sell it at a price which is less than it cost them to produce it or buy it.
- ateliosis — a form of infantilism caused by pituitary malfunction, characterized by a childish face and voice and associated physical underdevelopment, but not affecting intelligence.
- atherosis — (pathology) atheroma.
- athetosic — relating to or characterized by athetosis
- athetosis — a condition characterized by uncontrolled rhythmic writhing movement, esp of fingers, hands, head, and tongue, caused by cerebral lesion
- autocross — a form of motor sport in which cars race over a half-mile circuit of rough grass
- autogiros — Plural form of autogiro.
- autoscope — An optical instrument for examining one's own eye.
- autoscopy — the experience of hallucination in which one sees oneself from outside one's own body
- autosomal — any chromosome other than a sex chromosome.
- autosomes — Plural form of autosome.
- autospore — a nonmotile algal spore that develops adult characteristics before being released
- autostart — (transitive, intransitive, computing) To start automatically.
- auxospore — a diatom cell before its silicaceous cell wall is formed
- backcross — to mate (a hybrid of the first generation) with one of its parents
- baleboste — a capable, efficient housewife, especially a traditional Jewish one, devoted to maintaining a well-run home.
- ballyhoos — Plural form of ballyhoo.
- baroscope — any instrument for measuring atmospheric pressure, esp a manometer with one side open to the atmosphere
- bellicose — You use bellicose to refer to aggressive actions or behaviour that are likely to start an argument or a fight.
- beriosova — Svetlana (svɪtˈlanə). 1932–98, British ballet dancer, born in Lithuania
- biocenose — a situation in which organisms live together in mutual dependence
- biosafety — the precautions taken to control the cultivation and distribution of genetically modified crops and products
- bioscopic — examination of a body to discover whether or not it is alive.
- biosensor — a biological device used to detect specific chemical presence
- biosocial — relating to the interaction of biological and social elements
- biosolids — semisolid or solid organic material obtained from the recycling of sewage, used esp as a fertilizer
- biosphere — The biosphere is the part of the earth's surface and atmosphere where there are living things.
- biostable — resistant to the effects of microorganisms
- biostatic — the branch of biology dealing with the structure of organisms in relation to their functions (opposed to biodynamics).
- biostrome — a rock layer consisting of a deposit of organic material, such as fossils
- blossomed — the flower of a plant, especially of one producing an edible fruit.
- bob-fosse — Robert Louis ("Bob") 1927–87, U.S. dancer, choreographer, and theater and film director.
- book post — a special system and rate for posting books
- bosanquet — Bernard, 1848–1923, English philosopher and writer.
- bosberaad — a meeting in an isolated venue to break a political deadlock
- boschvark — a bush pig of S Africa
- boskiness — the quality of being bosky
- boskopoid — of, relating to, or characteristic of Boskop man or the culture or habitat of Boskop man.
- boss-eyed — having a squint
- bossiness — given to ordering people about; overly authoritative; domineering.
- bostonian — a person from Boston