13-letter words containing o, i
- aerophilately — the study or collection of airmail stamps, cancellations, etc.
- aerosinusitis — inflammation of the nasal sinuses caused by the effect on the sinuses of changes in atmospheric pressure.
- affectionally — In an affectional manner.
- affectionated — Simple past tense and past participle of affectionate.
- affectionless — showing no affection or kindly disposition towards
- affordability — that can be afforded; believed to be within one's financial means: attractive new cars at affordable prices.
- afforestation — Afforestation is the process of planting large numbers of trees on land which has few or no trees on it.
- aformentioned — Misspelling of aforementioned.
- african union — an organization of African states established in 2002 as successor to the OAU; it aims to encourage economic development and political stability through increased cooperation between its members
- afro-american — African-American
- aganglionosis — (medicine) A medical condition involving absence of ganglia.
- aggiornamento — the process of bringing up to date methods, ideas, etc
- agglomeration — An agglomeration of things is a lot of different things gathered together, often in no particular order or arrangement.
- agglomerative — gathered together into a cluster or mass.
- agglutination — the act or process of agglutinating
- agglutinogens — Plural form of agglutinogen.
- aggradational — (geology) Pertaining to or formed by aggradation.
- aggregational — resulting from aggregation
- agonistically — in an agonistic manner
- agro-economic — of or relating to a nation's agricultural economy, the financial problems of farmers as a group, etc.: mounting pressures on the agro-economic system.
- agro-industry — the large-scale production, processing, and packaging of food using modern equipment and methods.
- agrobacterium — A soil bacterium, of the genus Agrobacterium, which can fix nitrogen, and causes the formation of crown galls in plants.
- agrobiologist — One who studies bacteria and other organisms in soil for the purpose of growing crops or feeding animals.
- agrochemicals — Plural form of agrochemical.
- agroecologist — One who studies agroecology.
- agronomically — in an agronomic manner
- agrostologist — a person who specializes in agrostology
- agroterrorism — the use of biological agents as weapons against agricultural and food-supply industries
- ahead of time — If you do something ahead of time, you do it before a particular event or before you need to, in order to be well prepared.
- ahistorically — In an ahistorical way.
- ailurophiliac — Appropriate or pleasing to ailurophiles.
- air commodore — a senior officer of the Royal Air Force and certain other air forces, of equivalent rank to brigadier in the Army
- air core coil — having a nonmagnetic core, as one of fiber or plastic, encircled by a coil (air-core coil) or containing one or more such coils: air-core transformer.
- air force one — the US Air Force plane used by the US president
- air injection — injection of liquid fuel into the cylinder of an internal-combustion engine, especially a diesel, by means of a jet of compressed air.
- air pollution — contamination of the atmosphere
- air-condition — to apply air conditioning to
- air-to-ground — operating between an aircraft in flight and a target on the ground
- aircraftwoman — The female equivalent of an aircraftman.
- aircraftwomen — Plural form of aircraftwoman.
- airline pilot — a person who flies planes as a profession and works for a commercial airline
- airplane mode — a setting on a phone or other mobile device that turns off Wi-Fi, cellular, and other wireless connections.
- airport novel — People sometimes refer to long novels such as thrillers and romances that are written in a popular style as airport novels.
- airworthiness — (of an aircraft) meeting established standards for safe flight; equipped and maintained in condition to fly.
- aius locutius — a disembodied voice that warned the Romans of a coming invasion by the Gauls.
- ajax mountain — a peak on the Idaho-Montana border, in the Bitterroot Range of the Rocky Mountains. 10,900 feet (3,324 meters).
- albizu campos — Pedro [pe-th raw] /ˈpɛ ðrɔ/ (Show IPA), 1891–1964, Puerto Rican political leader.
- albumin color — (in textile printing) a color fixed to a fabric by an albuminous mordant.
- alcoholically — in an alcoholic manner
- aldosteronism — high blood pressure caused by excess aldosterone in the blood and urine