19-letter words containing f, d, i
- differential driver — (hardware) An electronic device (commonly an integrated circuit), containing two amplifiers, used to drive a differential line.
- diffraction grating — a band of equidistant, parallel lines, usually more than 5000 per inch (2000 per centimeter), ruled on a glass or polished metal surface for diffracting light to produce optical spectra.
- 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.
- 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.
- director of studies — a member of staff at an educational institution who has responsibility for overseeing the curriculum
- disablement benefit — (in Britain) a noncontributory benefit payable to a person disabled through injury or disease caused by their work
- 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.
- disenfranchisements — Plural form of disenfranchisement.
- distinctive feature — a feature of the sound system of a language that serves as the crucial distinguishing mark between two phonemes, as the distinctive feature of voicing, which distinguishes b from p in English, or nasality, which distinguishes m from b and p.
- diversified farming — the practice of producing a variety of crops or animals, or both, on one farm, as distinguished from specializing in a single commodity.
- doctrine of descent — the theory that animals and plants arose by descent from previously existing organisms; theory of evolution
- draw someone's fire — to attract the criticism or censure of someone
- drink the health of — to salute or celebrate with a toast
- elastic deformation — In elastic deformation a material changes shape when a stress is applied to it but goes back to its original state when the stress is removed.
- electrostatic field — an electric field associated with static electric charges
- end of transmission — (character) (EOT) The mnemonic for ASCII character 4.
- expeditionary force — An expeditionary force is a group of soldiers who are sent to fight in a foreign country.
- factitious disorder — any of various syndromes, as Münchausen syndrome, characterized by physical or psychological symptoms intentionally produced by a person and under voluntary control.
- fahd ibn abdul aziz — 1923–2005, king of Saudi Arabia (1982–2005)
- fair-weather friend — a person who cannot be relied on in situations of hardship or difficulty
- fall by the wayside — to cease or fail to continue doing something
- fallacy of division — the fallacy of inferring that a property of the whole is also a property of parts or members of the whole (opposed to fallacy of composition).
- family-sized packet — a large packet
- fashion coordinator — a person in a department store or other establishment who coordinates activities centered upon or related to fashion, as fashion themes, shows, displays, and promotion.
- fault-based testing — (testing) Software testing using test data designed to demonstrate the absence of a set of pre-specified faults; typically, frequently occurring faults. For example, to demonstrate that the software handles or avoids divide by zero correctly, the test data would include zero.
- feast of dedication — Hanukkah.
- feather-tail glider — pygmy glider.
- feynman, richard p. — Richard P. Feynman
- fifteenth amendment — an amendment to the U.S. Constitution, ratified in 1870, prohibiting the restriction of voting rights “on account of race, color, or previous condition of servitude.”.
- financial ombudsman — any of five British ombudsmen: the Banking Ombudsman, set up in 1986 to investigate complaints from bank customers; the Building Society Ombudsman, set up in 1987 to investigate complaints from building society customers; the Insurance Ombudsman, set up in 1981 to investigate complaints by policyholders (since 1988 this ombudsman has also operated a Unit Trust Ombudsman scheme); the Investment Ombudsman set up in 1989 to investigate complaints by investors (the Personal Investment Authority Ombudsman is responsible for investigating complaints by personal investors); and the Pensions Ombudsman, set up in 1993 to investigate complaints regarding pension schemes
- finds its/their way — If something finds its way somewhere, it comes to that place, especially by chance.
- finite differencing — strength reduction
- first degree murder — the most serious category of murder
- 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!
- first-degree murder — Law. the killing of another human being under conditions specifically covered in law. In the U.S., special statutory definitions include murder committed with malice aforethought, characterized by deliberation or premeditation or occurring during the commission of another serious crime, as robbery or arson (first-degree murder) and murder by intent but without deliberation or premeditation (second-degree murder)
- first-sale doctrine — a legal principle allowing the purchaser of a lawfully made copy of a copyright-protected work to sell or give away that copy without permission but not to reproduce it.
- five o'clock shadow — the rather dark stubble that appears on a man's face some hours after shaving, typically in the late afternoon if he shaved in the morning.
- five-o'clock shadow — the rather dark stubble that appears on a man's face some hours after shaving, typically in the late afternoon if he shaved in the morning.
- fixed cost contract — a contract in which the costs do not vary
- fixed exchange rate — finance: set rate of exchange
- fixed-rate mortgage — a home mortgage for which equal monthly payments of interest and principal are paid over the life of the loan, usually for a term of 30 years.
- fixed-term contract — a contract for a particular and fixed period
- fixed-wing aircraft — a heavier-than-air aircraft capable of flight whose lift is generated not by wing motion relative to the aircraft, but by forward motion through the air
- floating foundation — a foundation used in yielding soil, having for its footing a raft tending to displace a weight greater than that of the building.
- floppy (disk) drive — the controller and mechanism for reading and writing data on floppy disks
- florida velvet bean — a tropical vine, Mucuna deeringiana, of the legume family, having showy, purple flowers in drooping clusters and black, hairy pods: grown as an ornamental.
- fluophosphoric acid — fluorophosphoric acid.
- fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
- for crying out loud — exasperation
- forward engineering — (process) The traditional process of moving from high-level abstractions and logical, implementation-independent designs to the physical implementation of a system. Contrast reverse engineering.