13-letter words containing i, o, a
- acinetobacter — a bacterium that causes infections such as pneumonia, particularly in people who have a compromised immune system
- acknowledging — Present participle of acknowledg.
- acoustic hood — a type of shield that fits around electronic and other equipment, which reduces the noise generated when that equipment is being used
- acoustic mine — a naval mine designed to be exploded by the vibration of the propeller of a passing ship or by the sound of water along the hull.
- acoustooptics — the branch of physics dealing with the relationships between acoustics and light
- acquisitional — relating to the act of acquisition
- acrimoniously — caustic, stinging, or bitter in nature, speech, behavior, etc.: an acrimonious answer; an acrimonious dispute.
- acrobatically — In an acrobatic manner.
- acronymically — in an acronymic manner
- acrylic color — a color or paint made by mixing pigments in a solution of acrylic resin
- acrylonitrile — a colourless liquid that is miscible with water and has toxic fumes: used in the manufacture of acrylic fibres and resins, rubber, and thermoplastics. Formula: CH2:CHCN
- actinobiology — the branch of biology concerned with the effects of radiation on living organisms
- actinomorphic — (esp of a flower) having radial symmetry, as buttercups
- actinomycetes — Plural form of actinomycete.
- actinomycosis — a fungal disease of cattle and of cats and dogs, sometimes transmitted to humans esp by bites, characterized by a swelling of the affected part, most often the jaw or lungs
- actinotherapy — radiotherapy, especially using ultraviolet rays.
- actinouranium — the isotope of uranium that has a mass number of 235
- action figure — a small figure of a character from a film, television programme, comic book etc, designed as a toy and often collected by enthusiasts
- action replay — An action replay is a repeated showing, usually in slow motion, of an event that has just been on television.
- action-packed — full of activities, events and excitement
- actionability — furnishing ground for a lawsuit.
- active object — (programming) An object each instance of which has its own thread running as well as its own copies of the object's instance variables.
- active optics — a system to compensate for any deformation caused by gravity in the surface accuracy and alignment of the mirrors of an astronomical telescope by means of actuators that control the movable mirror supports
- active reason — an activity of intellect, embodying universal truth, potentially present in the mind of every individual, and when present, forming the only immortal part of the individual.
- actualisation — Alternative spelling of actualization.
- actualization — the act or process of actualizing.
- additionality — (in Britain) the principle that money raised by the National Lottery should only be spent on projects that would not otherwise be funded by government spending
- adenoidectomy — surgical removal of the adenoids
- adenopathies' — enlargement or disease of the glands, especially the lymphatic glands: a patient with prominent adenopathy. See also lymphadenopathy.
- adjudications — Plural form of adjudication.
- admensuration — Admeasurement.
- administrador — (historical) A steward or official in various Spanish- and Portuguese-speaking countries.
- administrator — An administrator is a person whose job involves helping to organize and supervise the way that an organization or institution functions.
- admission day — any of several legal holidays celebrated individually by certain states, commemorating their admission into the Union
- admonishingly — in an admonishing manner
- admonishments — Plural form of admonishment.
- advance ratio — the ratio of wind speed along the axis of a rotor or propeller to the speed of the blade tip
- advection fog — fog caused by the movement of warm, moist air over a cold surface.
- advice column — In a newspaper or magazine, the advice column contains letters from readers about their personal problems, and advice on what to do about them.
- aeroacoustics — the study of the generation and transmittance of sound by fluid flow
- aerodigestive — of or relating to the organs and tissues of the respiratory tract and the upper part of the digestive tract
- aerodontalgia — a toothache caused by lowered barometric pressure, as in high-altitude flight.
- aerodynamical — relating to aerodynamics
- aeroembolisms — Plural form of aeroembolism.
- aerolithology — the science of aerolites
- aeromagnetics — the science of measuring magnetic characteristics associated with atmospheric conditions of the earth.
- aeromechanics — the mechanics of gases, esp air
- aeromodelling — the making and flying of model planes
- 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.