19-letter words containing f, i, n, e, a, r
- declaration of love — a statement made by one person to another in which they say they are in love with the other person
- 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.
- diamond ring effect — a phenomenon, sometimes observed immediately before and after a total eclipse of the sun, in which one of Baily's beads is much brighter than the others, resembling a diamond ring around the moon.
- diamond-leaf laurel — a tree, Pittosporum rhombifolium, of Australia, having coarsely toothed, oval or diamond-shaped leaves and white flowers, widely planted as an ornamental in the southwestern U.S.
- dictionary of names — a dictionary of given names that indicates whether a name is usually male, female, or unisex and often includes origins as well as meanings; for example, as by indicating that Evangeline, meaning “good news,” comes from Greek. Used primarily as an aid in selecting a name for a baby, dictionaries of names may also include lists of famous people who have shared a name and information about its current popularity ranking.
- difference equation — (mathematics) A relation between consecutive elements of a sequence. The first difference is D u(n) = u(n+1) - u(n) where u(n) is the nth element of sequence u. The second difference is u(n+2) + a u(n+1) + b u(n) = 0 can be converted to a difference equation (in this case, a second order linear difference equation): D2 u(n) + p D u(n) + q u(n) = 0 and vice versa. a, b, p, q are constants.
- differential backup — (operating system) A kind of backup that copies all files that have changed since the last full backup. Each differential backup will include all files in previous differential backups since the full backup so to restore a version of a file, you only need to search the full backup and the relevant differential backup. Some systems support differential backup by associating an "Archive" flag with each file and setting this flag whenever the file is modified to indicate that it should be included in the next backup. A differential backup does not change this flag, whereas an incremental backup resets it.
- differential driver — (hardware) An electronic device (commonly an integrated circuit), containing two amplifiers, used to drive a differential line.
- 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.
- 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.
- 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.
- end of transmission — (character) (EOT) The mnemonic for ASCII character 4.
- engineering factory — a factory where engineering products are made
- entry qualification — the qualifications and conditions required to join an organization, club, etc
- expeditionary force — An expeditionary force is a group of soldiers who are sent to fight in a foreign country.
- fair-weather friend — a person who cannot be relied on in situations of hardship or difficulty
- family practitioner — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
- fault tolerant unix — (operating system) (FTX) Stratus's own Unix System V Release 4 multiprocessor operating system. In 2016, FTX is supported but no longer developed. FTX was one of three operating systems supplied by Stratus on their hardware, the other two, HP-UX and VOS, were the more common choices, FTX was only sold on an exceptional basis. Early FTX 3.x releases used an in-house virtual disk layer (VDL) driver, but later releases switched to a version of Veritas VxVM. FTX supported many of the proprietary communications boards (ISDN, serial, parallel, X.25, etc.).
- fault tree analysis — (programming) A form of safety analysis that assesses hardware safety to provide failure statistics and sensitivity analyses that indicate the possible effect of critical failures.
- february revolution — Russian Revolution (def 1).
- february-revolution — Also called February Revolution. the uprising in Russia in March, 1917 (February Old Style), in which the Czarist government collapsed and a provisional government was established.
- female circumcision — clitoridectomy.
- female impersonator — a male performer who dresses as and impersonates women.
- fertility treatment — the application of any of various methods or procedures to a woman or man to increase the woman's chances of conceiving a baby
- feynman, richard p. — Richard P. Feynman
- figurative language — language that contains or uses figures of speech, especially metaphors.
- finds its/their way — If something finds its way somewhere, it comes to that place, especially by chance.
- first international — a socialistic organization (1864–76) formed to unite and promote the interests of workers throughout the world. Compare international (def 6).
- 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-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.
- fixed cost contract — a contract in which the costs do not vary
- fixed exchange rate — finance: set rate of exchange
- 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 restaurant — a boat or ship that has been converted for use as a restaurant
- 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.
- 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.
- forensic accountant — an accountant who specializes in applying accountancy skills to the purposes of the law
- forensic psychiatry — the use of psychiatric knowledge and techniques in questions of law, as in determining legal insanity.
- fortification agate — an agate, used as a gem, having polygonal banding such that it suggests the plan of a bastion.
- 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.
- forward integration — the acquisition of all or part of a distribution chain by a firm that sells the goods distributed, so that the firm becomes or become closer to the direct seller of the goods
- fractal compression — (algorithm) A technique for encoding images using fractals.
- fractional currency — coins or paper money of a smaller denomination than the basic monetary unit.
- frameshift mutation — a mutation caused by frameshift.