11-letter words containing o, e, i
- approximate — An approximate number, time, or position is close to the correct number, time, or position, but is not exact.
- apron piece — (in a staircase) a header receiving the ends of rough strings, carriage pieces, and the joists of landings.
- aquaerobics — A form of aerobics done while in water.
- arab legion — a police force (1920–56) under British supervision, responsible for keeping order among desert tribesmen in Trans-Jordan.
- arabinoside — a glycoside yielding arabinose when hydrolysed
- araeometric — relating to araeometry
- araliaceous — of, relating to, or belonging to the Araliaceae, a chiefly tropical family of trees, shrubs, or woody climbers having small clusters of whitish or greenish flowers. The family includes the ivy and ginseng
- arbor vitae — any of several Asian and North American evergreen coniferous trees of the genera Thuja and Thujopsis, esp Thuja occidentalis, having tiny scalelike leaves and egglike cones
- arborvitaes — Plural form of arborvitae.
- arboviruses — Plural form of arbovirus.
- archaeornis — an extinct primitive Jurassic bird, formerly placed in the genus Archaeornis but now thought to be a species of archaeopteryx
- archaeozoic — Archeozoic
- archdiocese — An archdiocese is the area over which an archbishop has control.
- archegonial — relating to an archegonium
- archegonium — a female sex organ, occurring in mosses, spore-bearing vascular plants, and gymnosperms, that produces a single egg cell in its swollen base
- archeologic — (American spelling) alternative spelling of archaeologic.
- archicortex — (anatomy) Part of the allocortex, specifically three layered hippocampal cortexes necessary for hippocampus formation.
- archipelago — An archipelago is a group of islands, especially small islands.
- architector — (obsolete) An architect.
- arctic zone — the section of the earth's surface lying between the Arctic Circle and the North Pole.
- area office — a part of a business, organization, etc which is the most important office in a specific geographical area
- arenicolous — growing or living in sand or sandy places
- areocentric — relating to a reference system which has Mars as its centre
- areographic — relating to areography
- aristoteles — a walled plain in the first quadrant of the face of the moon: about 60 miles (97 km) in diameter.
- arkeologist — Someone who studies the story of Noah's Ark, particularly by searching for physical evidence which would corroborate it.
- aroint thee — away! begone!
- arolla pine — a five-needled pine tree, Pinus cembra, found esp in mountain regions of Central Europe and yielding edible seeds
- arrestation — the slowing or stopping of the development or progress of something
- ars poetica — the art of poetry
- arteriogram — an X-ray of a vein or artery which has been injected with dye in order to diagnose obstruction or damage
- arteriotomy — the surgical cutting of an artery or a cut made in an artery
- arthrodesis — the fusion of bones in a joint through surgery which causes immobility of the joint
- arytenoidal — relating to the arytenoid cartilages in the larynx and also to other parts relating to them
- asbestiform — having the look or structure of asbestos
- ascensional — (astronomy) Relating to ascension.
- asperations — Plural form of asperation.
- aspergation — the action of sprinkling, suffusing or irrigating with water
- aspersorium — a basin containing holy water with which worshippers sprinkle themselves
- assentation — servile or hypocritical agreement
- assertation — An assertion, statement of opinion.
- assessorial — a person who makes assessments, especially for purposes of taxation.
- assiniboine — a river in W Canada, rising in E Saskatchewan and flowing southeast and east to the Red River at Winnipeg. Length: over 860 km (500 miles)
- associative — Associative thoughts are things that you think of because you see, hear, or think of something that reminds you of those things or which you associate with those things.
- assoilments — Plural form of assoilment.
- assortative — Denoting or involving the preferential mating of animals or marrying of people with similar characteristics.
- asteroidean — an echinoderm of the class Asteroidea, comprising the starfishes.
- astrometric — (astronomy) of or relating to astrometry.
- astronomize — to practise or study astronomy or engage in astronomical matters
- at one time — If you say that something was the case at one time, you mean that it was the case during a particular period in the past.