19-letter words containing f, r, o
- creeping cinquefoil — any of several plants belonging to the genus Potentilla, of the rose family, having yellow, red, or white five-petaled flowers, as P. reptans (creeping cinquefoil) of the Old World, or P. argentea (silvery cinquefoil) of North America.
- cross one's fingers — to fold one finger across another in the hope of bringing good luck
- cross-channel ferry — a ferry that transports passengers and vehicles across the English Channel
- cross-fertilization — fertilization by the fusion of male and female gametes from different individuals of the same species
- cult of personality — a cult promoting adulation of a living national leader or public figure, as one encouraged by Stalin to extend his power.
- current transformer — A current transformer is a transformer that is designed to give an accurate current ratio for the purpose of measurement and control.
- customer preference — Customer preference is what type of product an individual customer likes and dislikes.
- cyril of alexandria — Saint. ?375–444 ad, Christian theologian and patriarch of Alexandria. Feast day: June 27 or June 9
- 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.
- 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.
- dependable software — software reliability
- dereliction of duty — Dereliction of duty is deliberate or accidental failure to do what you should do as part of your job.
- developable surface — a surface that can be flattened onto a plane without stretching or compressing any part of it, as a circular cone.
- 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.
- 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.
- director of studies — a member of staff at an educational institution who has responsibility for overseeing the curriculum
- 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.
- do well for oneself — to thrive or succeed
- 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.
- electromotive force — a source of energy that can cause a current to flow in an electrical circuit or device
- electrostatic field — an electric field associated with static electric charges
- 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
- essence of bergamot — a fragrant essential oil from the fruit rind of this plant, used in perfumery and some teas (including Earl Grey)
- estate of the realm — an order or class of persons in a political community, regarded collectively as a part of the body politic: usually regarded as being the lords temporal (peers), lords spiritual, and commons
- 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.
- family practitioner — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
- farmers cooperative — an organization of farmers for marketing their products or buying supplies.
- 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.
- father of the house — (in Britain) the longest-serving member of the House of Commons
- 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.).
- feather-duster worm — any tube-dwelling polychaete worm of the families Sabellidae and Serpulidae, the numerous species having a crown of feathery tentacles used in feeding and respiration.
- 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.
- feel strongly about — to have decided opinions concerning
- fellow countrywoman — a fellow countrywoman is a female citizen of the same state as the person speaking, writing, or being referred to
- fellow-servant rule — the common-law rule that the employer is not liable to an employee for injuries resulting from the negligence of a fellow employee.
- female circumcision — clitoridectomy.