13-letter words containing o
- 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
- acrylyl group — the univalent group C 3 H 3 O−, derived from acrylic acid.
- act one's age — anything done, being done, or to be done; deed; performance: a heroic act.
- 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.
- actor-manager — a leading actor who produces and usually stars in his or her own productions: Sir Henry Irving was one of the first actor-managers.
- actualisation — Alternative spelling of actualization.
- actualization — the act or process of actualizing.
- adder's-mouth — any of various orchids of the genus Malaxis that occur in all parts of the world except Australia and New Zealand and have small usually greenish flowers
- 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
- addressograph — a machine for addressing envelopes, etc
- 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.
- adenosquamous — Having both glandular (adenoid) and squamous characteristics.
- 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.
- adrenalectomy — the surgical removal of one or both adrenal glands
- adultolescent — a young adult or middle-aged person who has interests, traits, etc., that are usually associated with teenagers.
- 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.
- adventuresome — Adventuresome means the same as adventurous.
- adventurously — inclined or willing to engage in adventures; enjoying adventures.
- 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.
- advocacy tank — a research and development institution that works to lobby government officials to adopt the institution's viewpoints.
- 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.
- aeroemphysema — A form of emphysema that results from rapid decompression.
- aerogenerator — a generator that is driven by winds
- aerolithology — the science of aerolites
- aeromagnetics — the science of measuring magnetic characteristics associated with atmospheric conditions of the earth.