16-letter words containing r, i, t, l
- feel constrained — If you feel constrained to do something, you feel that you must do it, even though you would prefer not to.
- feline distemper — distemper1 (def 1c).
- ferroelectricity — (physics) The electric polarization of a substance (spontaneous presence of a dipole moment) that is analagous to ferromagnetism.
- fertile crescent — an agricultural region extending from the Levant to Iraq.
- fertile material — material which can be converted into a fissile material by a neutron-induced nuclear reaction, as uranium-238 or thorium-232
- fertility clinic — a place at which a couple who are unable to conceive may receive medical advice and treatments to help them to have a child
- fertility factor — a sex-determining chromosome or gene.
- fertility symbol — an object, esp a phallic symbol, used in fertility-cult ceremonies to symbolize regeneration
- feulgen reaction — a reaction in which an aldehyde combines with a modified Schiff's reagent to produce a purplish compound: used especially to test for the presence of DNA
- filter cigarette — a cigarette with a filter tip
- filter promotion — (algorithm) In a generate and test algorithm, combining part of the filter with the generator in order to reduce the number of potential solutions generated. A trivial example: filter (< 100) [1..1000] ==> [1..99] where [1..n] generates the list of integers from 1 to n. Here the filter has been combined completely with the generator. This is an example of fusion.
- filterable virus — a virus particle small enough to pass through a filter of diatomaceous earth or porcelain, which will not pass bacteria: chiefly historical or an informal indicator of size, as synthetic membrane filters now permit passage of the smallest virus.
- fire regulations — rules intended to make sure that people and property stay safe in the event of a fire
- fire-tube boiler — any boiler for generating steam by passing hot gases and other combustible products through tubes (fire tubes) immersed in water to a chimney or uptake.
- first balkan war — Balkan War (def 1).
- first lieutenant — an officer ranking next above second lieutenant and next below a captain.
- flabbergastation — (colloquial) Bewildered shock or surprise; the state or condition of being flabbergasted.
- flabbergastingly — Surprisingly, astonishingly or amazingly.
- flame cultivator — an implement that kills weeds by scorching them with a directed flow of flaming gas.
- flash eliminator — a device fitted to the muzzle of a firearm to reduce the flash made by the ignited propellant gases
- flibbertigibbets — Plural form of flibbertigibbet.
- flibbertigibbety — Like a flibbertigibbet; flighty; scatterbrained.
- flight formation — an arrangement of two or more airplanes flying together in a group, usually in a predetermined pattern.
- flight indicator — artificial horizon (def 3).
- flight simulator — a device used in pilot and crew training that provides a cockpit environment and sensations of flight under actual conditions.
- floridean starch — the storage polysaccharide of red algae.
- flotation collar — an inflatable device worn around the neck to keep the wearer afloat when in danger of drowning
- flutter tonguing — a method of sounding a wind instrument, esp the flute, with a rolling movement of the tongue
- food intolerance — an intolerance of a specific type of food, causing an adverse reaction
- fool around with — have casual sex
- foreign national — citizen of another country
- forked lightning — Forked lightning is lightning that divides into two or more parts near the ground.
- formation flying — a formal arrangement of flying aircraft acting as a unit
- formylmethionine — Alternative spelling of formyl methionine.
- four-minute mile — a mile-long race run in four minutes or less
- frederic mistral — Frédéric [frey-dey-reek] /freɪ deɪˈrik/ (Show IPA), 1830–1914, French Provençal poet: Nobel prize 1904.
- freight terminal — (on a rail network) a place where freight is stored while awaiting onward transport
- friction welding — a method of welding thermoplastics or metals by the heat generated by rubbing the members to be joined against each other under pressure.
- friendly society — law: mutual group providing benefits
- frigate mackerel — a small, blue-green, black-striped fish, Auxis thazard, abundant in tropical seas, having dark, oily flesh that is sometimes used as food.
- frontier orbital — the highest-energy occupied orbital or lowest-energy unoccupied orbital in a molecule. Such orbitals have a large influence on chemical properties
- full to the brim — If something, especially a container, is filled to the brim or full to the brim with something, it is filled right up to the top.
- functional group — a group of atoms responsible for the characteristic behavior of the class of compounds in which the group occurs, as the hydroxyl group in alcohols.
- 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.
- furniture polish — product: shines wood
- galactic cluster — a comparatively young, irregularly shaped group of stars, often numbering up to several hundred, and held together by mutual gravitation; usually found along the central plane of the Milky Way and other galaxies.
- 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.
- galvanic battery — battery (def 1a).
- garfield heights — a city in NE Ohio, near Cleveland.