19-letter words containing d, e, p, r, o
- de-compartmentalize — to divide into categories or compartments.
- deflate compression — deflate
- deflationary spiral — Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
- dendrogeomorphology — (geology) the science that uses dendrochronology to study changes to the Earth's surface over time.
- dental receptionist — a receptionist working in a dental surgery
- department of labor — the department of the U.S. federal government that promotes and improves the welfare, opportunities, and working conditions of wage earners. Abbreviation: DOL.
- department of state — the department of the U.S. federal government that sets forth and maintains the foreign policy of the U.S., especially in negotiations with foreign governments and international organizations. Abbreviation: DOS.
- departmentalisation — Alternative spelling of departmentalization.
- departmentalization — to divide into departments.
- dependable software — software reliability
- detective inspector — a police officer who investigates crime and who ranks above a detective sergeant but below a detective chief inspector
- developable surface — a surface that can be flattened onto a plane without stretching or compressing any part of it, as a circular cone.
- diffraction pattern — the phenomenon exhibited by wave fronts that, passing the edge of an opaque body, are modulated, thereby causing a redistribution of energy within the front: it is detectable in light waves by the presence of a pattern of closely spaced dark and light bands (diffraction pattern) at the edge of a shadow.
- dihydrostreptomycin — an antibiotic, C 21 H 41 N 7 O 12 , derived by organic synthesis from and believed to be less toxic than streptomycin: used in the form of its sulfate chiefly in the treatment of tuberculosis.
- dimetric projection — a type of axonometric projection in which the object is shown with two of its three principal axes tilted equally from the plane of viewing
- direct-vision prism — Amici prism.
- directional coupler — (communications) (tap) A passive device used in cable systems to divide and combine radio frequency signals. A directional coupler has at least three ports: line in, line out, and the tap. The signal passes between line in and line out ports with loss referred to as the insertion loss. A small portion of the signal power applied to the line in port passes to the tap port. A signal applied to the tap port is passed to the line in port less the tap attenuation value. The tap signals are isolated from the line out port to prevent reflections. A signal applied to the line out port passes to the line in port and is isolated from the tap port. Some devices provide more than one tap output line (multi-taps).
- disciples of christ — a Christian denomination, founded in the U.S. by Alexander Campbell in the early part of the 19th century, that rejects all creeds, holds the Bible as a sufficient rule of faith and practice, administers baptism by immersion, celebrates the Lord's Supper every Sunday, and has a congregational polity.
- discovery procedure — any rigorous method by the application of which a grammar might be constructed from a corpus of utterances in a language; an algorithm leading from data to a formulation.
- disjunctive pronoun — an inflection of pronouns in some languages that is used alone or after a preposition, such as moi in French
- 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
- dose-response curve — a curve plotting the relationship between the dose of a drug administered and its pharmacological effect.
- double counterpoint — invertible counterpoint using two transposable voices.
- drop the other shoe — an external covering for the human foot, usually of leather and consisting of a more or less stiff or heavy sole and a lighter upper part ending a short distance above, at, or below the ankle.
- 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.
- 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
- empty-nest syndrome — a condition, often involving depression, loneliness, etc, experienced by parents living in a home from which the children have grown up and left
- expeditionary force — An expeditionary force is a group of soldiers who are sent to fight in a foreign country.
- extendible compiler — (language) (ETC) A Fortran-like compiler that can be extended with macros.
- first world problem — a fairly minor problem, frustrating situation, or complaint associated with a relatively high standard of living, as opposed to the more serious problems associated with poverty: I’m bored with all my electronic gadgets—such a first world problem!
- floppy (disk) drive — the controller and mechanism for reading and writing data on floppy disks
- fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
- 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
- front-end processor — a small computer or other dedicated device that performs preliminary processing of data for a host computer.
- get one's dander up — to become or to cause someone to become annoyed or angry
- gigabits per second — (unit) (Gbps) A unit of information transfer rate equal to one billion bits per second. Note that, while a gigabit is defined as a power of two (2^30 bits), a gigabit per second is defined as a power of ten (10^9 bits per second, which is slightly less) than 2^30).
- gloucester old spot — a hardy rare breed of pig, white with a few black markings, that originally lived off windfalls in orchards in the Severn valley
- grade point average — a measure of scholastic attainment computed by dividing the total number of grade points received by the total number of credits or hours of course work taken.
- grievance procedure — the established series of steps to be taken in dealing with a grievance raised with an employer by an employee
- grosse pointe woods — a city in SE Michigan, near Detroit.
- ground-plane aerial — a quarter-wave vertical dipole aerial in which the electrical image forming the other quarter-wave section is formed by reflection in a system of radially disposed metal rods or in a conductive sheet
- high blood pressure — elevation of the arterial blood pressure or a condition resulting from it; hypertension. Abbreviation: HBP.
- hydroelectric power — electricity generated by water
- hydropneumatization — utilization of air pressure in the housing of a water turbine to keep the level of water that has been used from rising to interfere with the rotor blades.
- hyperfocal distance — the distance, at a given f number, between a camera lens and the nearest point (hyperfocal point) having satisfactory definition when focused at infinity.