18-letter words containing f, r, c, o
- fitness instructor — physical trainer, exercise teacher
- fixed-focus camera — a camera with an unadjustable focal length and with a relatively large depth of field.
- fixed-radio access — Wireless Local Loop
- fluorescent screen — a transparent screen coated on one side with a phosphor that fluoresces when exposed to X-rays or cathode rays
- fluorodeoxyglucose — (carbohydrate) A fluorine analog of glucose that is used in positron emission tomography.
- forced development — the processing of underexposed photographic film to increase the image density
- forced perspective — the use of objects or images that are larger or smaller than they should be, to suggest that they are nearer or further away than they really are
- forensic chemistry — the application of facts concerning chemistry to questions of civil and criminal law.
- forensic scientist — science expert: provides evidence
- formal equivalence — the relation that holds between two open sentences when their universal closures are materially equivalent
- forward compatible — forward compatibility
- four-color problem — the problem, solved in 1976, of proving the theorem that any geographic map can be colored using only four colors so that no connected countries with a common boundary are colored the same color.
- fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
- fracture toughness — The fracture toughness of a material is how likely it is to resist fracture.
- frame of reference — a structure of concepts, values, customs, views, etc., by means of which an individual or group perceives or evaluates data, communicates ideas, and regulates behavior.
- francisco coronado — Francisco Vásquez de [frahn-thees-kaw bahs-keth th e,, frahn-sees-kaw bahs-kes] /frɑnˈθis kɔ ˈbɑs kɛθ ðɛ,, frɑnˈsis kɔ ˈbɑs kɛs/ (Show IPA), 1510–54? Spanish explorer in North America.
- frederick douglass — Frederick, 1817–95, U.S. ex-slave, abolitionist, and orator.
- frequency function — probability density function (def 2).
- frequency response — the effectiveness with which a circuit, device, or system processes and transmits signals fed into it, as a function of the signal frequency.
- ftp software, inc. — (company) Developers of the original PC/TCP Packet Driver specification. Address: 26 Princess St. Wakefield, MA 01880-3004. Telephone: +1 (617) 246 0900.
- functional program — (language) A program employing the functional programming approach or written in a functional language.
- funeral procession — ceremonial cortège at a burial
- general confession — a prayer confessing sins
- government deficit — A government deficit is a situation in which a government spends more money than it has.
- grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
- gulf of california — an arm of the Pacific Ocean, between Sonora and Lower California
- haemorrhagic fever — any of a group of fevers, such as Ebola virus disease and yellow fever, characterized by internal bleeding or bleeding into the skin
- hippocratic facies — the sallow facial expression, with listless staring eyes, often regarded as denoting approaching death
- historical fiction — the genre of literature, film, etc., comprising narratives that take place in the past and are characterized chiefly by an imaginative reconstruction of historical events and personages.
- horses for courses — a policy, course of action, etc modified slightly to take account of specific circumstances without departing in essentials from the original
- hydrofluorocarbons — Plural form of hydrofluorocarbon.
- hyposulfurous acid — an acid, H 2 S 2 O 4 , next in a series below sulfurous acid, known only in solution or in the form of its salts.
- ideas of reference — a schizophrenic symptom in which the patient thinks that things completely disconnected from him are influencing him or conveying messages to him
- immunofluorescence — any of various techniques for detecting an antigen or antibody in a sample by coupling its specifically interactive antibody or antigen to a fluorescent compound, mixing with the sample, and observing the reaction under an ultraviolet-light microscope.
- in complete flower — a flower without one or more of the normal parts, as carpels, sepals, petals, pistils, or stamens.
- inferior vena cava — See under vena cava.
- information centre — help desk, office
- information office — an office where you can go to get information
- inspector of taxes — an official of HMRC whose work is to assess individuals' income tax liability
- integrating factor — a factor that upon multiplying a differential equation with the right-hand side equal to zero makes the equation integrable, usually by making the resulting expression an exact differential of some function.
- isabella of france — 1292–1358, wife (1308–27) of Edward II of England, whom, aided by her lover, Roger de Mortimer, she deposed; mother of Edward III
- isthmus of corinth — a narrow strip of land between the Gulf of Corinth and the Saronic Gulf: crossed by the Corinth Canal making navigation possible between the gulfs
- jack of all trades — a person who is adept at many different kinds of work.
- jack-of-all-trades — a person who is adept at many different kinds of work.
- lambeth conference — a convention of the bishops of the Anglican communion, held about every 10 years at Lambeth Palace to confer but not to define doctrine or to legislate on ecclesiastical matters.
- laugh out of court — to express mirth, pleasure, derision, or nervousness with an audible, vocal expulsion of air from the lungs that can range from a loud burst of sound to a series of quiet chuckles and is usually accompanied by characteristic facial and bodily movements.
- lawrence of arabia — D(avid) H(erbert) 1885–1930, English novelist.
- lord chief justice — the presiding judge of Britain's High Court of Justice, the superior court of record for both criminal and civil cases.
- make a practice of — be in the habit of
- make allowance for — the act of allowing.