10-letter words containing o, a, r
- astrometry — the branch of astronomy concerned with the measurement of the position and motion of celestial bodies
- astronauts — Plural form of astronaut.
- astronomer — An astronomer is a scientist who studies the stars, planets, and other natural objects in space.
- astronomic — of, relating to, or connected with astronomy.
- astrophoto — (astronomy, photography) An image of one or more celestial objects made using techniques of astrophotography.
- asynchrony — a lack of synchronism or coincidence in time.
- atascadero — a town in SW California.
- atef-crown — a symbolic headdress of certain Egyptian gods, as Osiris, and of Egyptian kings, consisting of a tall conical cap flanked by two plumes and bearing representations of the uraeus and the sun.
- atheromata — Plural form of atheroma.
- atmosphere — A planet's atmosphere is the layer of air or other gases around it.
- atrocities — acts of extreme cruelty, esp against prisoners or civilians in wartime
- atrocity's — the quality or state of being atrocious.
- atropatene — Media Atropatene.
- atrophying — Also, atrophia [uh-troh-fee-uh] /əˈtroʊ fi ə/ (Show IPA). Pathology. a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage.
- attenuator — any device designed to reduce the power of a wave or electrical signal without distorting it
- attic room — a room in the attic of a house
- attoparsec — (unit, humour) About 31 mm (one inch). "atto-" is the standard SI prefix for multiplication by 10^-18. A parsec (parallax-second) is 3.26 light-years; an attoparsec is thus 3.26 * 10^-18 light years. Thus, one attoparsec per microfortnight is about one inch per second. This unit is reported to be in use (though probably not very seriously) among hackers in the UK.
- attornment — (feudal legal) The consent of a tenant to the transfer of his relationship to his landlord to another person.
- attraction — An attraction is a feature which makes something interesting or desirable.
- attractors — Plural form of attractor.
- attributor — to regard as resulting from a specified cause; consider as caused by something indicated (usually followed by to): She attributed his bad temper to ill health.
- au courant — up-to-date, esp in knowledge of current affairs
- auctionary — of or relating to auctions or auctioneers
- auctioneer — An auctioneer is a person in charge of an auction.
- audiograms — Plural form of audiogram.
- audiograph — a machine used to test a patient's hearing by transmitting sound waves directly to the inner ear
- audiometer — an instrument for testing the intensity and frequency range of sound that is capable of detection by the human ear
- audiometry — the testing of hearing by means of an audiometer.
- auditioner — a person who attends an audition
- auditorily — in an auditory manner, by hearing
- auditorium — An auditorium is the part of a theatre or concert hall where the audience sits.
- auguration — The practice of augury.
- aural-oral — audio-lingual.
- aureomycin — chlortetracycline
- auriferous — (of rock) containing gold; gold-bearing
- auriscopes — Plural form of auriscope.
- ausforming — a treatment to strengthen hard steels, prior to quenching, in which the specimen is plastically deformed while it is in the austenite temperature range
- australoid — denoting, relating to, or belonging to a supposed racial group that includes the native Australians and certain other peoples of southern Asia and the Pacific islands.
- australorp — a heavy black breed of domestic fowl
- authorised — Alternative spelling of authorized.
- authorises — Third-person singular simple present indicative form of authorise.
- authoritie — Obsolete spelling of authority.
- authorized — officially permitted or empowered
- authorizer — to give authority or official power to; empower: to authorize an employee to sign purchase orders.
- authorizes — Third-person singular simple present indicative form of authorize.
- authorless — having no author; anonymous
- authorship — The authorship of a piece of writing is the identity of the person who wrote it.
- authourity — Obsolete form of authority.
- authourize — Rare spelling of authorize.
- auto court — motel.