16-letter words containing r, e, a, o
- force one's hand — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- forced vibration — Forced vibration is a type of vibration in which a force is repeatedly applied to a mechanical system.
- fore and aft rig — a sail set in a line from one end the other of a vessel rather than in a square
- fore-and-aft rig — a rig in which the principal sails are fore-and-aft.
- forefathers' day — the anniversary of the day (December 21, 1620, in Old Style December 11) on which the Pilgrims landed at Plymouth, Mass. Owing to an error in changing the date from the Old Style to the New, it is generally observed on December 22.
- foreign exchange — commercial paper drawn on a person or corporation in a foreign nation.
- foreign language — language not one's mother tongue
- foreign national — citizen of another country
- formation packer — A formation packer is a substance that is used as a seal between the casing and the borehole so that part of the hole can be tested.
- forswear oneself — to swear falsely; perjure oneself
- fort leavenworth — a military reservation and U.S. Army training center in E Kansas adjoining Leavenworth, one of the oldest (1827) military posts W of the Mississippi and site of federal penitentiary.
- fortin barometer — an adjustable cistern barometer, the most common of those employing mercury.
- forward delivery — delivery at a future date.
- forward exchange — a foreign bill purchased at a stipulated price and payable at a future date.
- forwarding agent — freight forwarder.
- founders' shares — shares awarded to the founders of a company and often granting special privileges
- four-course meal — A four-course meal is a meal that consists of four parts served one after the other.
- four-deal bridge — a version of bridge in which four hands only are played, the players then cutting for new partners
- four-dimensional — of a space having points, or a set having elements, which require four coordinates for their unique determination.
- four-leaf clover — a clover leaf having four leaflets instead of the usual three, purported to bring good luck.
- four-masted brig — jackass bark (def 2).
- four-star petrol — petrol containing lead, formerly sold in the UK
- fourier analysis — the expression of any periodic function as a sum of sine and cosine functions, as in an electromagnetic wave function. Compare Fourier series.
- fourth amendment — an amendment to the U.S. Constitution, ratified in 1791 as part of the Bill of Rights, prohibiting unlawful search and seizure of personal property.
- fraises des bois — wild strawberries
- francesco sforza — Count Carlo [kahr-law] /ˈkɑr lɔ/ (Show IPA), 1873–1952, Italian statesman: anti-Fascist leader.
- francis joseph i — 1830–1916, emperor of Austria 1848–1916; king of Hungary 1867–1916.
- francis of sales — Saint, 1567–1622, French ecclesiastic and writer on theology: bishop of Geneva 1602–22.
- francis townsend — Francis Everett, 1867–1960, U.S. physician and proposer of the Townsend plan.
- franco-provencal — a Romance dialect group of western Switzerland and neighboring parts of France: closely related to both Provençal and northern French.
- franz josef land — an archipelago in the Arctic Ocean, E of Spitzbergen and N of Novaya Zemlya: belongs to the Russian Federation.
- fraternity house — a house occupied by a college or university fraternity.
- fraunhofer lines — a set of dark lines appearing in the continuous emission spectrum of the sun. It is caused by the absorption of light of certain wavelengths coming from the hotter region of the sun by elements in the cooler outer atmosphere
- free association — the uncensored expression of the ideas, impressions, etc., passing through the mind of the analysand, a technique used to facilitate access to the unconscious.
- freeboard length — the length of a vessel, measured on the summer load line from the fore side of the stem to some part of the stern, usually the after side of the rudderpost.
- french cameroons — Cameroun (def 2).
- french indochina — an area in SE Asia, formerly a French colonial federation including Cochin-China, the protectorates of Annam, Cambodia, Tonkin, and Laos, and the leased territory of Kwangchowan: now comprising the three independent states of Vietnam, Cambodia, and Laos. Capital: Hanoi.
- french polynesia — a French overseas territory in the S Pacific, including the Society Islands, Marquesas Islands, and other scattered island groups. 1544 sq. mi. (4000 sq. km). Capital: Papeete.
- friction gearing — wheels or disks transmitting power by means of frictional contact.
- fringed polygala — a North American milkwort, Polygala paucifolia, having flowers with purplish-pink, winglike petals and a fringed tube.
- from one's heart — very sincerely or deeply
- front and center — If a topic or question is front and center, a lot of attention is being paid to it or a lot of people are talking about it.
- front-end loader — a loader having a shovel or bucket at the end of an articulated arm located at the front of the vehicle.
- frontier orbital — the highest-energy occupied orbital or lowest-energy unoccupied orbital in a molecule. Such orbitals have a large influence on chemical properties
- functional water — water containing additives that provide extra nutritional value
- funeral director — a person, usually a licensed embalmer, who supervises or conducts the preparation of the dead for burial and directs or arranges funerals.
- galactic equator — the great circle on the celestial sphere that is equidistant from the galactic poles, being inclined approximately 62° to the celestial equator and lying about one degree north of the center line of the Milky Way.
- gamma correction — (hardware) Adjustments applied during the display of a digital representation of colour on a screen in order to compensate for the fact that the Cathode Ray Tubes used in computer monitors (and televisions) produce a light intensity which is not proportional to the input voltage. The light intensity is actually proportional to the input voltage raised to the inverse power of some constant, called gamma. Its value varies from one display to another, but is usually around 2.5. Because it is more intuitive for the colour components (red, green and blue) to be varied linearly in the computer, the actual voltages sent to the monitor by the display hardware must be adjusted in order to make the colour component intensity on the screen proportional to the value stored in the computer's display memory. This process is most easily achieved by a dedicated module in the display hardware which simply scales the outputs of the display memory before sending them to the digital-to-analogue converters. More expensive graphics cards and workstations (particularly those used for CAD applications) will have a gamma correction facility. In combination with the "white-point" gamma correction is used to achieve precise colour matching.
- garbage disposal — A garbage disposal or a garbage disposal unit is a small machine in the kitchen sink that breaks down waste matter so that it does not block the sink.
- gasoline-powered — using gasoline as fuel