9-letter words containing a, e, r, o
- arthroses — Plural form of arthrosis.
- artichoke — Artichokes or globe artichokes are round green vegetables that have fleshy leaves arranged like the petals of a flower.
- artmobile — a truck trailer outfitted to transport and exhibit works of art in areas without access to museums.
- arytenoid — denoting either of two small cartilages of the larynx that are attached to the vocal cords
- ascorbate — a salt of ascorbic acid
- ascospore — one of the spores (usually eight in number) that are produced in an ascus
- ashtoreth — an ancient Semitic fertility goddess, identified with Astarte and Ishtar
- asmoulder — in a smouldering or slowly burning manner
- aspersion — a disparaging or malicious remark; slanderous accusation (esp in the phrase cast aspersions (on))
- assertion — a positive statement, usually made without an attempt at furnishing evidence
- assertory — characterized by or relating to declaration or affirmation
- assessors — Plural form of assessor.
- assortive — to distribute, place, or arrange according to kind or class; classify; sort.
- asteroids — Plural form of asteroid.
- astrocyte — any of the star-shaped cells in the tissue supporting the brain and spinal cord (neuroglia)
- astrodome — a transparent dome on the top of an aircraft, through which observations can be made, esp of the stars
- astrofell — (in the works of Spenser) an unidentified plant, commonly believed to be akin to an aster
- astrogate — (science fiction, intransitive) To astronavigate; to control and guide a spacecraft.
- astrolabe — an instrument used by early astronomers to measure the altitude of stars and planets and also as a navigational aid. It consists of a graduated circular disc with a movable sighting device
- at source — at the point of origin
- atemporal — having the quality of being uninfluenced, ungoverned or unchanged by time
- atheromas — Plural form of atheroma.
- atherosis — (pathology) atheroma.
- athrocyte — a cell that is able to receive and store matter
- atmometer — an instrument for measuring the rate of evaporation of water into the atmosphere
- atmometry — the science of measuring the rate at which water evaporates.
- atomizers — Plural form of atomizer.
- atrophied — exhibiting or affected with atrophy; wasted; withered; shriveled: an atrophied arm; an atrophied talent.
- atrophies — 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.
- attleboro — a city in SE Massachusetts.
- attolaser — a high-power laser capable of producing pulses with a duration measured in attoseconds
- attorneys — Plural form of attorney.
- attornies — Plural form of attorny.
- au poivre — coated with crushed black peppercorns, sautéed, and usually flamed with brandy and served with a sauce
- au revoir — goodbye
- augmentor — a person or thing that augments.
- aureation — (rhetoric) The enhancement of the seriousness of a topic by the use of elaborate circumlocutions or polysyllabic or Latinate words for it.
- auriscope — a medical instrument for examining the external ear
- authoress — An authoress is a female author. Many female writers object to this word, and prefer to be called authors.
- authorise — to give authority or official power to; empower: to authorize an employee to sign purchase orders.
- authorize — If someone in a position of authority authorizes something, they give their official permission for it to happen.
- autocoder — (language) Possibly the first primitive compiler. AUTOCODER was written by Alick E. Glennie in 1952. It translated symbolic statements into machine language for the Manchester Mark I computer. Autocoding later came to be a generic term for assembly language programming.
- autocrime — a crime involving a motor vehicle, esp the theft of a car
- autocrine — relating to self-stimulation, through the production of a factor and a specific receptor for it
- autodrome — a track or circuit for racing cars, go-karts, etc
- autoflare — a computer-operated, automatic landing system in an aircraft
- automaker — An automaker is a company that manufactures cars.
- autometer — a small device inserted in a photocopier to enable the process of copying to begin and to record the number of copies made
- autoreply — a facility for sending automated replies to email messages
- autoroute — a French motorway