13-letter words containing o, t
- acetabuliform — saucer-shaped, as the fruiting bodies of certain lichens.
- acetaminophen — a white crystalline powder, CH3CONHC6H4OH, used for reducing fever and relieving pain
- acetate rayon — a synthetic textile fibre made from cellulose acetate
- acetate-rayon — Chemistry. a salt or ester of acetic acid.
- acetazolamide — a drug which operates by blocking the production of hydrogen ions and hydrogen carbonate, used to treat various conditions including epilepsy and glaucoma
- acetohexamide — (pharmaceutical drug) A sulfonylurea antidiabetic drug.
- acetylcholine — a chemical substance secreted at the ends of many nerve fibres, esp in the autonomic nervous system, and responsible for the transmission of nervous impulses. Formula: CH3CO2(CH2)2N(CH3)3+
- achromaticity — achromatism.
- achromatophil — Also, achromatophilic [ey-kruh-mat-uh-fil-ik, ak-ruh-, ey-kroh-muh-tuh-] /ˌeɪ krəˌmæt əˈfɪl ɪk, ˌæk rə-, eɪˌkroʊ mə tə-/ (Show IPA). having little or no affinity for stains.
- achromatopsia — a visual disorder defined by deficient or absent function in the retinal cones, resulting in colour blindness and in decreased vision in bright lights
- achromobacter — any of several rod-shaped bacteria of the genus Achromobacter, found in soil and water.
- acidification — The act or process of making something sour (acidifying), or changing into an acid.
- acinetobacter — a bacterium that causes infections such as pneumonia, particularly in people who have a compromised immune system
- acotyledonous — Having no seed lobes, as the dodder; also applied to plants which have no true seeds, as ferns, mosses, etc.
- 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
- acrobatically — In an acrobatic manner.
- 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
- 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
- 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.
- 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.