18-letter words containing r, a, d, i, o
- fixed-focus camera — a camera with an unadjustable focal length and with a relatively large depth of field.
- fixed-radio access — Wireless Local Loop
- flat-bottomed rail — a rail having a cross section like an inverted T, with the top extremity enlarged slightly to form the head
- floating underflow — underflow
- fore-edge painting — a technique of painting a picture on the fore edge of a book, often in such a manner that only when the pages are slightly fanned the picture is revealed.
- foreign-trade zone — free port (def 1).
- forgive and forget — be reconciled
- forward compatible — forward compatibility
- forwarding address — address for mail to be sent on
- foundation garment — an undergarment, as a girdle or corset, worn by women to support or give shape to the contours of the body.
- fragile x syndrome — a widespread form of mental retardation caused by a faulty gene on the X chromosome.
- fragile-x syndrome — an inherited condition characterized by learning disability: affected individuals have an X-chromosome that is easily damaged under certain conditions
- 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.
- fringe-toed lizard — an iguanid lizard, Uma notata, of sandy deserts of the western U.S. and Mexico, having a wedge-shaped snout and toes fringed with long, pointed scales.
- fulminating powder — powder that explodes by percussion.
- funding operations — the conversion of government floating stock or short-term debt into holdings of long-term bonds
- gabriele dannunzio — Gabriele [Italian gah-bree-e-le] /Italian ˌgɑ briˈɛ lɛ/ (Show IPA), (Duca Minimo) 1863–1938, Italian soldier, novelist, and poet.
- gamma distribution — a continuous two-parameter distribution from which the chi-square and exponential distributions are derived, written Gamma (α. β), where α and β are greater than zero, and defined in terms of the gamma function
- garden loosestrife — any of various plants belonging to the genus Lysimachia, of the primrose family, having clusters of usually yellow flowers, as L. vulgaris (garden loosestrife) or L. quadrifolia (whorled loosestrife)
- gilbert and george — a team of artists, Gilbert Proesch, Italian, born 1942, and George Passmore, British, born 1943: noted esp for their photomontages and performance works
- golden gate bridge — a bridge connecting N California with San Francisco peninsula. 4200-foot (1280-meter) center span.
- good samaritan law — a law that exempts from legal liability persons, sometimes only physicians, who give reasonable aid to strangers in grave physical distress.
- grains of paradise — Usually, grains of paradise. one of the pungent, peppery seeds of an African plant, Aframomum melegueta, of the ginger family, used to strengthen cordials and in veterinary medicine.
- grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
- gregorian calendar — the reformed Julian calendar now in use, according to which the ordinary year consists of 365 days, and a leap year of 366 days occurs in every year whose number is exactly divisible by 4 except centenary years whose numbers are not exactly divisible by 400, as 1700, 1800, and 1900.
- growing degree-day — a degree-day above 41°F (5°C), used in relation to plant growth.
- guidance counselor — advisor in schools
- have words with sb — If one person has words with another, or if two or more people have words, they have a serious discussion or argument, especially because one has complained about the other's behaviour.
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- heteroscedasticity — (statistics) The property of a series of random variables of 'not' every variable having the same finite variance.
- heteroskedasticity — Alternative spelling of heteroscedasticity.
- higher-order macro — A means of expressing certain higher-order functions in a first order language. Proposed by Phil Wadler. Higher-order macros cannot be recursive at the top level but they may contain recursive definitions. E.g. See partial evaluation.
- hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
- honorable ordinary — any of the ordinaries believed to be among those that are oldest or that were the source of the other ordinaries, as the chief, pale, fess, bend, chevron, cross, and saltire.
- honour moderations — (at Oxford University) the first public examination, in which candidates are placed into one of three classes of honours
- hot-water cylinder — a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
- hydrocinnamic acid — a white crystalline compound, C 9 H 10 O 2 , with a floral odor, used in perfumes and flavoring.
- hydroflumethiazide — A diuretic drug.
- hydroxyacetic acid — glycolic acid.
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hypoparathyroidism — Diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
- 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
- ifs, ands, or buts — a supposition; uncertain possibility: The future is full of ifs.
- in accordance with — conforming to
- in good/bad repair — If something such as a building is in good repair, it is in good condition. If it is in bad repair, it is in bad condition.
- in inverted commas — If you say in inverted commas after a word or phrase, you are indicating that it is inaccurate or unacceptable in some way, or that you are quoting someone else.
- inconsiderableness — Quality of being inconsiderable.