9-letter words containing s, i, r, o
- apriorism — the philosophical doctrine that there may be genuine knowledge independent of experience
- apriorist — a person who believes in apriorism
- aprosexia — Inability to concentrate.
- arabinose — a pentose sugar in plant gums, esp of cedars and pines. It is used as a culture medium in bacteriology. Formula: C5H10O5
- arborists — Plural form of arborist.
- arbovirus — any one of a group of viruses that cause such diseases as encephalitis and dengue and are transmitted to humans by arthropods, esp insects and ticks
- 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
- aristotle — a bottle
- armouries — a drill hall used for training and as headquarters by a reserve unit of the armed forces
- aromatics — Plural form of aromatic.
- aromatise — Alternative spelling of aromatize.
- arpeggios — Plural form of arpeggio.
- arsenious — of or containing arsenic in the trivalent state
- arsonists — Plural form of arsonist.
- arthrosis — a bone joint which enables movement
- aspersion — a disparaging or malicious remark; slanderous accusation (esp in the phrase cast aspersions (on))
- aspirator — a device employing suction, such as a jet pump or one for removing fluids from a body cavity
- assertion — a positive statement, usually made without an attempt at furnishing evidence
- assorting — Present participle of assort.
- assortive — to distribute, place, or arrange according to kind or class; classify; sort.
- asteroids — Plural form of asteroid.
- astroglia — The group of star-shaped glial cells in the brain and spinal cord.
- atherosis — (pathology) atheroma.
- atomizers — Plural form of atomizer.
- atrocious — If you describe something as atrocious, you are emphasizing that its quality is very bad.
- 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.
- attornies — Plural form of attorny.
- auriscope — a medical instrument for examining the external ear
- auriscopy — (medicine) Examination of the ear using an auriscope.
- authorise — to give authority or official power to; empower: to authorize an employee to sign purchase orders.
- authorish — like or similar to an author
- authorism — the state or condition of being author
- autogiros — Plural form of autogiro.
- averroism — the teachings of Averroës
- aversions — Plural form of aversion.
- bar joist — a welded steel joist having an open web consisting of a single bent bar running in a zigzag pattern between horizontal upper and lower chords.
- barachois — (in the Atlantic Provinces of Canada) a shallow lagoon formed by a sand bar
- baritones — Plural form of baritone.
- barotitis — inflammation of the ear caused by a change in air pressure
- behaviors — manner of behaving or acting.
- beriosova — Svetlana (svɪtˈlanə). 1932–98, British ballet dancer, born in Lithuania
- bifarious — having parts arranged in two rows on either side of a central axis
- biofibres — vegetable, animal, or mineral fibres existing in nature which are used by man
- biosensor — a biological device used to detect specific chemical presence
- biosphere — The biosphere is the part of the earth's surface and atmosphere where there are living things.
- biostrome — a rock layer consisting of a deposit of organic material, such as fossils
- bird shot — small-sized shot used for shooting birds.
- birdhouse — a small shelter or box for birds to nest in
- bishopric — A bishopric is the area for which a bishop is responsible, or the rank or office of being a bishop.
- bordelais — a wine-growing region in SW France, in Gironde.