10-letter words containing r, i, o
- aeruginous — bluish-green, like copper rust
- affronting — a personally offensive act or word; deliberate act or display of disrespect; intentional slight; insult: an affront to the king.
- affrontive — characterized by a propensity to cause offence
- aforesaide — Archaic spelling of aforesaid.
- afro-asian — of or relating to both Africa and Asia, esp as part of the Third World
- afro-chain — (in the Caribbean) a large chain necklace with a central pendant: usually worn with a dashiki by men
- afrormosia — a hard teaklike wood obtained from tropical African trees of the leguminous genus Pericopsis
- aggeration — A heaping up; accumulation.
- aggression — Aggression is a quality of anger and determination that makes you ready to attack other people.
- agraphobia — Fear of sexual abuse.
- agrégation — (in France) a civil service examination for some posts in secondary and higher education
- agricultor — (archaic) An agriculturist; a farmer.
- agrologist — a person who specializes in agrology
- agronomial — of or relating to agronomy
- agronomics — the branch of economics dealing with the distribution, management, and productivity of land
- agronomist — An agronomist is someone who studies the growing and harvesting of crops.
- agrypnotic — inducing, relating to, or characterized by insomnia
- aid worker — a person who works for an aid agency
- air harbor — a harbor for hydroplanes, especially seaplanes.
- air pistol — An air pistol is a small gun which is fired by means of air pressure.
- air pocket — a localized region of low air density or a descending air current, causing an aircraft to suffer an abrupt decrease in height
- air police — members of an air force assigned to carry on police duties
- air potato — a vine, Dioscorea bulbifera, of southeastern Asia, having tubers weighing several pounds and growing in the leaf axils.
- air shower — a shower of secondary cosmic radiation, caused by the interaction of cosmic radiation or gamma radiation with the atmosphere.
- air-cooled — An air-cooled engine is prevented from getting too hot when it is running by cool air that passes over it, rather than being cooled by a liquid.
- air-logged — (of a pump or system of piping) hindered in its functioning by an air lock; air-bound.
- air-to-air — Air-to-air combat is a battle between military aeroplanes where rockets or bullets are fired at one aeroplane from another.
- air-to-sea — operating between an aircraft in flight and a target on the sea
- airdropped — Simple past tense and past participle of airdrop.
- alacritous — cheerful readiness, promptness, or willingness: We accepted the invitation with alacrity.
- alcoranist — a person who believes in an absolutely literal interpretation of the Koran.
- aldotriose — (carbohydrate) Any aldose having three carbon atoms; in reality, just glyceraldehyde.
- algorithim — (spelling) It's spelled "algorithm".
- algorithms — Plural form of algorithm.
- alienators — Plural form of alienator.
- alipterion — (in an ancient Roman bath) a room for anointment.
- allegories — Plural form of allegory.
- allegorist — a person who writes allegories
- allegorize — to transform (a story, narrative, fable, etc) into or compose in the form of allegory
- alleviator — a person or thing that alleviates.
- alligators — either of two broad-snouted crocodilians of the genus Alligator, of the southeastern U.S. and eastern China.
- allomerism — similarity of crystalline structure in substances of different chemical composition
- allomerize — to undergo allomerism.
- allometric — Of or pertaining to allometry.
- allopatric — (of biological speciation or species) taking place or existing in areas that are geographically separated from one another
- allosteric — of, relating to, or designating a function of an enzyme in which the structure and activity of the enzyme are modified by the binding of a metabolic molecule
- allotropic — of or characterized by allotropy
- almoravide — a member of a fanatical people of Berber origin and Islamic faith, who founded an empire in N Africa that spread over much of Spain in the 11th century ad
- alpha iron — a magnetic allotrope of iron that is stable below 910°C; ferrite
- alteration — An alteration is a change in or to something.