19-letter words containing t, o, r, f
- city of westminster — a borough of Greater London, on the River Thames: contains the Houses of Parliament, Westminster Abbey, and Buckingham Palace. Pop: 222 000 (2003 est). Area: 22 sq km (8 sq miles)
- coefficient of drag — the ratio of the drag on a body moving through air to the product of the velocity and surface area of the body.
- colorado tick fever — a usually mild viral disease occurring in the Rocky Mountain regions of the United States, carried by a tick, Dermacentor andersoni, and characterized by fever, sensitivity to light, headache, and leg and back pain.
- come to the surface — to emerge; become apparent
- commercial software — (software) (Or "commercial off-the-shelf software", COTS) Software that is produced for sale. This contrasts with free software, which is produced for free distribution, meaning without charge and/or without restriction on further distribution. Some companies that sell software distribute some (versions) of products free of charge (but usually with restricted distribution rights), this would probably still be called commercial software. Conversely, software that an individual distributes for free, but for which he accepts donations, would still be called free software.
- comminuted fracture — a fracture in which the bone is splintered or fragmented
- complete fertilizer — a fertilizer containing nitrogen, phosphorus, and potassium, the three principal elements required for plant nutrition.
- confectioner's shop — a sweet shop
- confederate jasmine — star jasmine.
- confidence interval — an interval of values bounded by confidence limits within which the true value of a population parameter is stated to lie with a specified probability
- contributing factor — something that is partly responsible for a development or phenomenon
- corrections officer — A corrections officer is someone who works as a guard at a prison.
- corruption of blood — the impurity before law that results from attainder and disqualifies the attainted person from inheriting, retaining, or bequeathing lands or interests in lands: abolished in 1870.
- counter reformation — the movement within the Roman Catholic Church that followed the Protestant Reformation of the 16th century.
- counter-reformation — the reform movement of the Roman Catholic Church in the 16th and early 17th centuries considered as a reaction to the Protestant Reformation
- countertransference — in psychotherapy, transference in which the psychoanalyst or other psychotherapist substitutes the client for the original object of his or her own repressed impulses
- court of st james's — the official name of the royal court of Britain
- craters of the moon — a national monument in S Idaho: site of scenic lava-flow formations.
- 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.
- 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.
- 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.
- 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.
- doctrine of descent — the theory that animals and plants arose by descent from previously existing organisms; theory of evolution
- 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.