19-letter words containing a, p, o
- disciplinary action — punishment or caution
- dispersion relation — the relationship between the angular frequency (ω;) of a wave and the magnitude of its wave vector (k). Thus the wave's speed is ω/k
- displaced homemaker — a woman recently divorced, separated, or widowed after many years as a homemaker.
- diversional therapy — the structured use of leisure time in recreation and play as a form of or supplement to conventional therapy
- dobsonian telescope — a relatively inexpensive Newtonian telescope, suitable for visual but not photographic use, in which the tube assembly slips freely in the lower base.
- dry-bulk cargo ship — a ship that carries an unpackaged dry cargo such as coal or grain; bulk carrier
- dynamic positioning — Dynamic positioning is the use of computers to control the position of a semi-submersible rig.
- early purple orchid — a Eurasian orchid, Orchis mascula, with purplish-crimson flowers and stems marked with blackish-purple spots
- ecatepec de morelos — a city in S central Mexico, a suburb of Mexico City: on a 12th-century Aztec site.
- echoencephalography — a device that employs reflected ultrasonic waves to examine the position of brain structures.
- electrocardiographs — Plural form of electrocardiograph.
- electrocardiography — The measurement of electrical activity in the heart and the recording of such activity as a visual trace (on paper or on an oscilloscope screen), using electrodes placed on the skin of the limbs and chest.
- electrode potential — the potential difference developed when an electrode of an element is placed in a solution containing ions of that element
- electron micrograph — a photograph or image of a specimen taken using an electron microscope
- electronic graphics — (on television) the production of graphic designs and text by electronic means
- electropalatography — the study of the movements of the tongue during speech using touch-sensitive electrodes in the mouth linked to a computer
- electrophoretically — By means of electrophoresis.
- electrophotographic — Of or pertaining to electrophotography.
- electrotherapeutics — (medicine) the use of electricity in therapeutics.
- employment tribunal — (in England, Scotland, and Wales) a tribunal that rules on disputes between employers and employees regarding unfair dismissal, redundancy, etc
- english toy spaniel — breed of dog
- entitlement program — a government program providing defined sectors of the population with social benefits
- equal opportunities — Equal opportunities refers to the policy of giving everyone the same opportunities for employment, pay and promotion, without discriminating against particular groups.
- european commission — the executive body of the European Union formed in 1967, which initiates action in the EU and mediates between member governments
- european parliament — law: assembly in Strasbourg
- evaporative cooling — a method of reducing temperature that uses evaporation
- exophthalmic goiter — a disease of unknown cause characterized by enlargement of the thyroid gland, overproduction of the thyroid hormone, and abnormal protrusion of the eyeballs
- exophthalmic goitre — a form of hyperthyroidism characterized by enlargement of the thyroid gland, protrusion of the eyeballs, increased basal metabolic rate, and weight loss
- expeditionary force — An expeditionary force is a group of soldiers who are sent to fight in a foreign country.
- expressionistically — In an expressionistic manner.
- extreme programming — a discipline of software engineering following a specific structure, designed to simplify and speed up the development process
- eye make-up remover — a product used to remove cosmetics such as mascara and eyeliner
- facultative apomict — a plant that can reproduce sexually or asexually.
- family practitioner — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
- farmers cooperative — an organization of farmers for marketing their products or buying supplies.
- female impersonator — a male performer who dresses as and impersonates women.
- first person plural — a grammatical category of pronouns and verbs used by the speaker to refer to or talk about himself together with others
- first-past-the-post — A first-past-the-post system for choosing members of parliament or other representatives is one in which the candidate who gets most votes wins.
- flat-joint pointing — pointing having flush joints of common mortar.
- floating-point unit — (hardware) (FPU) A floating-point accelerator, usually in a single integrated circuit, possible on the same IC as the central processing unit.
- flowering raspberry — a shrub, Rubus ordoratus, of eastern North America, having loose clusters of showy purplish or rose-purple flowers and inedible, dry, red fruit.
- fluophosphoric acid — fluorophosphoric acid.
- fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
- focal plane shutter — an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second
- focal-plane shutter — a camera shutter situated directly in front of the film.
- forensic psychiatry — the use of psychiatric knowledge and techniques in questions of law, as in determining legal insanity.
- fractal compression — (algorithm) A technique for encoding images using fractals.
- franco-prussian war — the war between France and Prussia, 1870–71.
- free alongside ship — (of a shipment of goods) delivered to the dock without charge to the buyer, but excluding the cost of loading onto the vessel
- freezer compartment — in a refrigerator, an enclosed area kept at a temperature low enough to store frozen foods or freeze non-frozen foods