19-letter words containing a, l, e, g, r, i
- de broglie equation — the postulate of wave mechanics that a particle of mass m moving at a velocity v will have the properties of a wave of wavelength h / mv (de Broglie wavelength) where h is Planck's constant.
- dendrochronological — Pertaining to dendrochronology.
- design in real time — (programming) (Dirt) A user interface builder for the X Window System by R. Hesketh.
- digital certificate — (communications, security) An attachment to an electronic mail message used for security purposes, e.g. to verify that a user sending a message is who he or she claims to be, and to provide the receiver with the means to encode a reply. An individual wishing to send an encrypted message applies for a digital certificate from a certificate authority (CA). The CA issues an encrypted digital certificate containing the applicant's public key and a variety of other identification information. The CA makes its own public key readily available on the Internet. The recipient of an encrypted message uses the CA's public key to decode the digital certificate attached to the message, verifies it as issued by the CA and then obtains the sender's public key and identification information held within the certificate.
- digital electronics — (electronics) The implementation of two-valued logic using electronic logic gates such as and gates, or gates and flip-flops. In such circuits the logical values true and false are represented by two different voltages, e.g. 0V for false and +5V for true. Similarly, numbers are normally represented in binary using two different voltages to represented zero and one. Digital electronics contrasts with analogue electronics which represents continuously varying quantities like sound pressure using continuously varying voltages. Digital electronics is the foundation of modern computers and digital communications. Massively complex digital logic circuits with millions of gates can now be built onto a single integrated circuit such as a microprocessor and these circuits can perform millions of operations per second.
- digital linear tape — (storage) (DLT) A kind of magnetic tape drive originally developed by DEC and now marketed by Quantum. DLT drives implement the Digital Lempel Ziv 1 (DLZ1) compression algorithm in a combination of hardware and firmware. They use a popular chip by Stac (now hi/fn) to do the string searching. Counting, sorting and Huffman coding are done in firmware (with hardware support for the Huffman algorithm?). In April 1997 DLT drives can transfer 5 megabytes per second and can store 35 gigabytes on a single cartridge. Compression might roughly double these figures.
- direct grant school — (in Britain, formerly) a school financed by endowment, fees, and a state grant conditional upon admittance of a percentage of nonpaying pupils nominated by the local education authority
- display advertising — display ads taken collectively.
- double-helical gear — herringbone gear.
- electrical engineer — An electrical engineer is a person who uses scientific knowledge to design, construct, and maintain electrical devices.
- 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.
- electromagnetically — By means of electromagnetism.
- electron micrograph — a photograph or image of a specimen taken using an electron microscope
- electronegativities — Plural form of electronegativity.
- electronic graphics — (on television) the production of graphic designs and text by electronic means
- electronic magazine — (messaging, publication, web) (e-zine) A regular publication on some particular topic distributed in digital form, chiefly now via the web but also by electronic mail or floppy disk. E-zines are often distributed for free by enthusiasts.
- electrophotographic — Of or pertaining to electrophotography.
- entitlement program — a government program providing defined sectors of the population with social benefits
- equatorial mounting — an astronomical telescope mounting that allows motion of the telescope about two mutually perpendicular axes, one of which is parallel to the earth's axis
- euclidean algorithm — Euclid's Algorithm
- evaluation strategy — reduction strategy
- 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
- feather-tail glider — pygmy glider.
- figurative language — language that contains or uses figures of speech, especially metaphors.
- floating restaurant — a boat or ship that has been converted for use as a restaurant
- 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.
- free alongside quay — (of a shipment of goods) delivered to the quay without charge to the buyer
- 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
- gaius julius caesar — Gaius [gey-uh s] /ˈgeɪ əs/ (Show IPA), (or Caius) [key-uh s] /ˈkeɪ əs/ (Show IPA), Julius, c100–44 b.c, Roman general, statesman, and historian.
- galactic coordinate — Usually, galactic coordinates. a member of a system of coordinates that define the position of a celestial body with reference to the Milky Way.
- gas central heating — a system of central heating fuelled by combustible gas
- gastrocolic omentum — the peritoneal fold attached to the stomach and the colon and hanging over the small intestine.
- gastroenterocolitis — (medicine) inflammation of the stomach, small intestines, and colon.
- gastroenterological — Of or pertaining to gastroenterology.
- general anaesthesia — the use of a general anaesthetic
- general anaesthetic — sth administered to induce unconsciousness
- general linguistics — the study of the characteristics of language in general rather than of a particular language; theoretical, rather than applied, linguistics.
- general partnership — a partnership in which each of the partners is fully liable for the firm's debts.
- general post office — (in the U.S. postal system) the main post office of a city, county, etc., that also has branch post offices. Abbreviation: G.P.O., GPO.
- generic array logic — (hardware, integrated circuit) (GAL) A newer kind of Programmable Array Logic based on EEPROM storage cells, been pioneered by Lattice. GALs can be erased and reprogrammed and usually replace a whole set of different PALs (hence the name).
- gentile da fabriano — 1370?–1427, Italian painter.
- gentleman-pensioner — (formerly) a gentleman-at-arms.
- geocentric parallax — the apparent displacement of an observed object due to a change in the position of the observer.
- geothermal gradient — the increase in temperature with increasing depth within the earth.
- gestational carrier — surrogate mother (def 3).
- giraldus cambrensis — literary name of Gerald de Barri. ?1146–?1223, Welsh chronicler and churchman, noted for his accounts of his travels in Ireland and Wales
- glottalic airstream — a current of air in the pharynx produced by the action of the glottis.