17-letter words containing e, n, t, r, a, l
- depersonalization — the act or an instance of depersonalizing
- dephosphorylation — the removal of a phosphate group from an organic compound, as in the changing of ATP to ADP.
- deterministically — the doctrine that all facts and events exemplify natural laws.
- development grant — a grant awarded, esp by a government, to a person or company in order to fund the development of a new product
- diethyltryptamine — a synthetic derivative of tryptamine with hallucinogenic and psychotogenic effects. Abbreviation: DET.
- differentiability — The ability to be differentiated.
- differential gear — differential (def 7).
- differential line — (hardware) A kind of electrical connection using two wires, one of which carries the normal signal (V) and the other carries an inverted version the signal (-V). A differential amplifier at the receiver subtracts the inverted signal from the normal signal to yield a signal proportional to V. This subtraction is intended to cancel out any noise induced in the wires, on the assmption that the same level of noise will have been induced in both wires. Twisted pair wiring is often used to try to ensure that this is the case. The two wires might be connected at the receiver to separate analogue to digital converters and the subtraction performed digitally. The RS-422 serial line standard specifies differential drivers and receivers, whereas the earlier RS-232 standard does not. Opposite: single ended.
- differential rate — a special lower rate, as one charged by one of two or more competing businesses.
- differential tone — a musical sound sometimes heard when two loud notes are sounded together, lower in pitch than either
- digital recording — a method of sound recording in which an input audio waveform is sampled at regular intervals, usually between 40,000 and 50,000 times per second, and each sample is assigned a numerical value, usually expressed in binary notation.
- digital signature — an encrypted digital code appended to an electronic document to verify that it was created by a known source and has not been altered.
- dimethylhydrazine — a flammable, highly toxic, and colorless liquid, C 2 H 8 N 2 , used as a component in jet and rocket fuels.
- disaster planning — disaster recovery
- discreditableness — Quality of being discreditable.
- dissolve in tears — weep
- distance learning — education in which students receive instruction over the Internet, from a video, etc., instead of going to school.
- distillers' grain — a by-product of the distillation process for making whisky, used as an animal foodstuff
- dollars-and-cents — considered strictly in terms of money: from a dollars-and-cents viewpoint.
- doorstep salesman — a door-to-door salesman
- double refraction — the separation of a ray of light into two unequally refracted, plane-polarized rays of orthogonal polarizations, occurring in crystals in which the velocity of light rays is not the same in all directions.
- double track line — a railway line with double track
- douglas engelbart — (person) Douglas C. Engelbart, the inventor of the mouse. On 1968-12-09, Douglas C. Engelbart and the group of 17 researchers working with him in the Augmentation Research Center at Stanford Research Institute in Menlo Park, California, USA, presented a 90-minute live public demonstration of the on live system, NLS, they had been working on since 1962. The presentation was a session in the of the Fall Joint Computer Conference held at the Convention Center in San Francisco, and it was attended by about 1000 computer professionals. This was the public debut of the computer mouse, hypertext, object addressing, dynamic file linking and shared-screen collaboration involving two persons at different sites communicating over a network with audio and video interface. The original 90-minute video: Hyperlinks, Mouse, Web-board.
- duality principle — the principle that a mathematical duality exists under certain conditions.
- eastern transvaal — Mpumalanga
- ehelp corporation — (company) A vendor of Microsoft Windows application development tools such as RoboHELP and RoboDemo. EHelp were formerly (around 1997) Blue Sky Software. Address: 7777 Fay Avenue, Suite 201, La Jolla, CA 92037, USA. Telephone: +1-800-793-0364, +1 (619) 459 6365. Fax: +1 (619) 459 6366.
- electric constant — the permittivity of free space, which has the value 8.854 187 × 10–12 farad per metre
- electroanesthesia — Anesthesia induced by cranial electrotherapy stimulation.
- electrofiltration — Electrofiltration is a separation process in which an electric field is applied across a filter to improve separation.
- electromechanical — Of, relating to, or denoting a mechanical device that is electrically operated.
- electron affinity — a measure of the ability of an atom or molecule to form a negative ion, expressed as the energy released when an electron is attached
- electronegativity — The tendency, or a measure of the ability, of an atom or molecule to attract electrons and thus form bonds.
- electroretinogram — A record of the electrical activity of the retina, used in medical diagnosis and research.
- elementary school — primary school
- elliptical spring — An elliptical spring is a spring that is made from two springs in the shape of elongated ovals laid cut in half and back-to-back.
- emotional cripple — someone who is unable to feel or show true emotion and so cannot form relationships with other people
- english breakfast — An English breakfast is a breakfast consisting of cooked food such as bacon, eggs, sausages, and tomatoes. It also includes toast and tea or coffee.
- enlarged prostate — disorder of male reproductive gland
- entrepreneurially — In an entrepreneurial manner.
- environmentalists — Plural form of environmentalist.
- equal opportunity — policies that bar discrimination
- equatorial guinea — a republic of W Africa, consisting of Río Muni on the mainland and the island of Bioko in the Gulf of Guinea, with four smaller islands: ceded by Portugal to Spain in 1778; gained independence in 1968. Official languages: Spanish and French. Religion: Roman Catholic majority. Currency: franc. Capital: Malabo. Pop: 704 000 (2013 est). Area: 28 049 sq km (10 830 sq miles)
- ethinyloestradiol — Alternative form of ethinylestradiol.
- ethnopharmacology — The scientific study correlating ethnic groups, their health, and how it relates to their physical habits and methodology in creating and using medicines.
- exception handler — Special code which is called when an exception occurs during the execution of a program. If the programmer does not provide a handler for a given exception, a built-in system exception handler will usually be called resulting in abortion of the program run and some kind of error indication being returned to the user. Examples of exception handler mechanisms are Unix's signal calls and Lisp's catch and throw.
- exfoliating cream — a granular cosmetic preparation that removes dead cells from the skin's surface
- experimental lisp — (language) (xlisp) An experimental programming language combining a subset of Common Lisp with an object-oriented extension capability (Class and Object types). It was implemented by David Micheal Betz at Apple to allow experimentation with object-oriented programming on small computers. The C source code has been ported to Unix, Microsoft Windows, Macintosh, Amiga, Atari, and MS-DOS. Version 2.1 of the interpreter, by Tom Almy is closer to Common Lisp. E-mail: Tom Almy <[email protected]>.
- external examiner — External experts, for example external examiners, come into an organization from outside in order to do a particular job fairly and impartially, or to check that a particular job was done properly.
- external relation — a relation that does not hold between its relata, as 4 is greater than 2
- extrasolar planet — any other celestial body revolving around a star, illuminated by light from that star