15-letter words containing r, u, f, i
- customs officer — a person employed by a customs service
- desulfurization — The process of removing sulfur from a substance, such as flue gas or crude.
- dexfenfluramine — an adrenergic drug, a form of fenfluramine, formerly used in treating obesity but withdrawn from the market in 1997 because of its potential to cause valvular heart disease.
- disgracefulness — The state or quality of being disgraceful.
- disrespectfully — characterized by, having, or showing disrespect; lacking courtesy or esteem: a disrespectful remark about teachers.
- distressfulness — The state or quality of being distressful; the state of having or causing anxiety or strain.
- distrustfulness — The state or quality of being distrustful or doubtful; distrust; mistrust.
- disulfuric acid — pyrosulfuric acid
- draughtproofing — Present participle of draughtproof.
- drug trafficker — someone that trades in illegal drugs
- evens favourite — the favourite to win a race and on which the bookmakers are offering even odds.
- faculty advisor — a member of the faculty who gives advice to students
- fair and square — free from bias, dishonesty, or injustice: a fair decision; a fair judge.
- family grouping — a system, used usually in the infant school, of grouping children of various ages together, esp for project work
- fauntleroy suit — a formal outfit for a boy composed of a hip-length jacket and knee-length pants, often in black velvet, and a wide, lacy collar and cuffs, usually worn with a broad sash at the waist and sometimes a large, loose bow at the neck, popular in the late 19th century.
- feature article — a feature article in a newspaper or magazine deals in depth with a topic or person
- feeding grounds — the place where animals gather to find food
- ferrous sulfide — a dark or black metallic crystalline compound, FeS, insoluble in water, soluble in acids, used in ceramics and to generate hydrogen sulfide.
- fiduciary issue — an issue of banknotes not backed by gold
- field of honour — the place or scene of a battle or duel, esp of jousting tournaments in medieval times
- field woundwort — the plant Stachys arvensis
- figurate number — a number having the property that the same number of equally spaced dots can be arranged in the shape of a regular geometrical figure.
- figure of eight — figure eight.
- figure of merit — a measure of the efficiency of a helicopter in hover
- finno-russo war — the war (1939–40) between Finland and the Soviet Union.
- fischer-dieskau — Dietrich [dee-trik;; German dee-trikh] /ˈdi trɪk;; German ˈdi trɪx/ (Show IPA), 1925–2012, German baritone.
- fish restaurant — a restaurant which serves mainly fish
- fishing harbour — a place where fishing boats are tied up
- fission product — a nuclide produced either directly by nuclear fission or by the radioactive decay of such a nuclide
- fissiparousness — The quality of being fissiparous.
- flapping router — (networking) A router that transmits routing updates alternately advertising a destination network first via one route, then via a different route. Flapping routers are identified on more advanced protocol analysers such as the Network General (TM) Sniffer.
- flavourdynamics — as in quantum flavour dynamics, a mathematical model used to describe the interaction of flavoured particles (weak force) through the exchange of intermediate vector bosons
- fleet insurance — Fleet insurance is a type of insurance contract that applies to a number of vehicles.
- fleming's rules — two rules used as mnemonics for the relationship between the directions of current flow, motion, and magnetic field in electromagnetic induction. The hand is held with the thumb, first, and second fingers at right angles, respectively indicating the directions of motion, field, and electric current. The left hand is used for electric motors and the right hand for dynamos
- flirtatiousness — The quality of being flirtatious.
- flood insurance — insurance covering loss or damage to property arising from a flood, flood tide, or the like.
- floral tributes — bunches or arrangements of flowers left as a memorial at the site of a fatal incident
- florida current — the part of the Gulf Stream which extends from the Florida Strait to Cape Hatteras.
- floriferousness — Quality of being floriferous, or bearing many flowers.
- flowering shrub — any shrub that produces flowers
- fluoridationist — One who supports the addition of fluoride to the public water supply.
- fluorine dating — a method of determining the relative age of fossil bones found in the same excavation by comparing their fluorine content.
- fluorochemicals — Plural form of fluorochemical.
- fluoroquinolone — Any of a class of therapeutic antibiotics that are active against a range of bacteria associated with human and animal diseases. Their use in livestock has sparked concerns about the spread of bacteria resistant to them in humans.
- flying buttress — a segmental arch transmitting an outward and downward thrust to a solid buttress that through its inertia transforms the thrust into a vertical one.
- flying squirrel — any of various nocturnal tree squirrels, as Glaucomys volans, of the eastern U.S., having folds of skin connecting the fore and hind legs, permitting long, gliding leaps.
- focusing screen — a camera in which the image appears on a ground-glass viewer (focusing screen) after being reflected by a mirror or after passing through a prism or semitransparent glass; in one type (single-lens reflex camera) light passes through the same lens to both the ground glass and the film, while in another type (twin-lens reflex camera) light passes through one lens (viewing lens) to the ground glass and through a second lens (taking lens) to the film, the lenses being mechanically coupled for focusing.
- food insecurity — an economic and social condition of limited or uncertain access to adequate food.
- forbidden fruit — the fruit of the tree of knowledge of good and evil, tasted by Adam and Eve against God's prohibition. Gen. 2:17; 3:3.
- force the issue — to compel decision on some matter