15-letter words containing r, e, g, n
- epeirogenically — in the manner of epeirogeny
- ergatandromorph — an ant with the characteristics of both worker and male
- estates general — States-General (sense 1)
- estuary english — a variety of standard British English in which the pronunciation reflects various features characteristic of London and the Southeast of England
- evening prayers — the daily evening service of Bible readings and prayers prescribed in the Book of Common Prayer
- everlastingness — The state or quality of being everlasting.
- ewing's sarcoma — a form of malignant bone tumour most commonly found in children and young people
- exaggeratedness — the quality of being exaggerated
- examining board — an organization that sets and corrects exams
- exchange server — Microsoft Exchange
- export earnings — the earnings of a company or country that are generated through the export of goods or services
- external degree — a degree gained by a student who studies extramurally
- external galaxy — any galaxy beyond our own galaxy
- extralinguistic — Outside the realm of linguistics.
- extravagantness — The quality of being extravagant.
- extreme ironing — an activity that involves ironing items of laundry while engaged in a sport such as snowboarding or rock climbing
- falling weather — wet weather, as rain or snow.
- false pregnancy — physiological signs of pregnancy without conception; pseudocyesis.
- feather banding — decorative banding of veneer or inlay having the grain laid diagonally to the grain of the principal surface.
- feeding grounds — the place where animals gather to find food
- ferrihemoglobin — methemoglobin.
- feynman diagram — a network of lines that represents a series of emissions and absorptions of elementary particles by other elementary particles, from which the probability of the series can be calculated.
- fighter command — a former unit of the Royal Air Force dedicated to the use of fighter aircraft, esp against enemy bombers and their escorts during WWII
- fighting french — Free French.
- 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.
- finger alphabet — a series of shapes made by the fingers that indicate letters of an alphabet and can be used in fingerspelling for the deaf
- finger painting — a jellylike paint, used chiefly by children in painting, usually with their fingers.
- finger spelling — a method of communicating with or among deaf people in which different shapes made with the fingers represent different letters of the alphabet
- finger-pointing — the imputation of blame or responsibility.
- fire-and-forget — used to describe a type of missile that, once fired, is able to guide itself to its target
- fire-engine red — a very bright red color.
- first gentleman — (often initial capital letters) the husband of the U.S. president or a current governor or mayor.
- first messenger — a hormone that triggers a biochemical reaction at a site removed from its release.
- flame hardening — the surface hardening of ferrous metals by heating the metal with an oxyacetylene flame followed by rapid cooling
- flamingo-flower — a central American plant, Anthurium scherzeranum, of the arum family, having a red, coiled spadix and a bright red, shiny, heart-shaped spathe, grown as an ornamental.
- 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.
- 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
- flight engineer — a member of an aircraft crew responsible for the mechanical systems, fueling, and servicing of the craft.
- flight sergeant — a noncommissioned officer in the Royal Air Force junior in rank to a master aircrew
- floating charge — an unsecured charge on the assets of an enterprise that allows such assets to be used commercially until the enterprise ceases to operate or the creditor intervenes to demand collateral
- floating screed — Building Trades. screed (def 3).
- flowering maple — any of various shrubs belonging to the genus Abutilon, of the mallow family, having large, bright-colored flowers.
- flowering plant — a plant that produces flowers, fruit, and seeds; angiosperm.
- flowering shrub — any shrub that produces flowers
- fluorine dating — a method of determining the relative age of fossil bones found in the same excavation by comparing their fluorine content.
- 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 fortress — a heavy bomber, the B-17, with four radial piston engines, widely used over Europe and the Mediterranean by the U.S. Air Force in World War II.
- 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 processing — transforming raw materials into food