15-letter words containing f, a, r, l, s
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- fool's paradise — a state of enjoyment based on false beliefs or hopes; a state of illusory happiness.
- foolscap quarto — a book size, 63⁄4 by 81⁄2 inches (foolscap quarto)
- forecastle deck — a partial weather deck on top of a forecastle superstructure; topgallant forecastle.
- forecastle head — the extreme fore part of a forecastle superstructure.
- formal calculus — an uninterpreted symbolic system whose syntax is precisely defined, and on which a relation of deducibility is defined in purely syntactic terms; a logistic system
- formation rules — the set of rules that specify the syntax of a formal system; the algorithm that generates the well-formed formulae
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- franklin square — a town on W Long Island, in SE New York.
- franklin's gull — a black-headed North American gull, Larus pipixcan, feeding chiefly on insects.
- fraternal twins — one of a pair of twins, not necessarily resembling each other, or of the same sex, that develop from two separately fertilized ova.
- free soil party — a former U.S. political party (1848–56) that opposed the extension of slavery in the Territories not yet admitted to statehood.
- friar's lantern — ignis fatuus (def 1).
- fringe festival — an unofficial, often unconventional, arts festival that is associated with another, larger festival
- frisian islands — a chain of islands in the North Sea along the coasts of the Netherlands, Germany, and Denmark: separated from the mainland by shallows
- fuller's teasel — a Eurasian teasel plant, Dipsacus fullonum, whose prickly flower heads are used for raising the nap on woollen cloth
- funeral service — ceremony at a burial or cremation
- fusospirochetal — Relating to fusospirochetes.
- futilitarianism — The belief that all human activity is futile.
- gesneria family — the plant family Gesneriaceae, characterized by herbaceous plants having a basal rosette of usually toothed leaves, tubular two-lipped flowers, and fruit in the form of a berry or capsule, and including the African violet, gloxinia, and streptocarpus.
- giant sunflower — a composite plant, Helianthus giganteus, of eastern North America, growing nearly 12 feet (4 meters) high and having very large yellow flower heads.
- golden starfish — an award given to a bathing beach that meets EU standards of cleanliness
- gulf of argolis — an inlet of the Aegean Sea, in the E Peloponnese
- half-understood — partially understood
- halfheartedness — The characteristic of being half-hearted.
- heralds' office — the official heraldic authority of Scotland.
- inertial fusion — a type of nuclear fusion in which the inertia of matter enables it to fuse by impact, as by pulses of laser radiation or high-energy charged particles, rather than by high temperature
- infrastructural — the basic, underlying framework or features of a system or organization.
- interfascicular — pertaining to or forming a fascicle; fasciculate.
- interfoliaceous — situated between leaves, especially opposite leaves.
- intrafascicular — between the xylem and phloem elements of a vascular bundle
- island grey fox — a similar and related animal, U. littoralis, inhabiting islands off North America
- kaffeeklatscher — a person who participates, especially regularly, in a kaffee klatsch.
- kirchhoff's law — the law that the algebraic sum of the currents flowing toward any point in an electric network is zero.
- lake miraflores — an artificial lake in Panama, in the S Canal Zone of the Panama Canal
- land of promise — Promised Land.
- lateral fissure — the fissure separating the frontal, temporal, and parietal lobes of the cerebrum.
- law of averages — a statistical principle formulated by Jakob Bernoulli to show a more or less predictable ratio between the number of random trials of an event and its occurrences.
- leaves of grass — a book of poems (first edition, 1855; final edition, 1891–92) by Walt Whitman.
- legacy software — legacy system
- liaison officer — a person who liaises between groups or units
- long-sufferance — long-suffering.
- low pass filter — (electronics, graphics) A filter that attenuates high frequency components of a signal. In image processing, a low pass filter might be used to remove noise from an image.
- low-pass filter — a filter that transmits all frequencies below a specified value, substantially attenuating frequencies above this value
- maid of orléans — Saint ("the Maid of Orléans") 1412?–31, French national heroine and martyr who raised the siege of Orléans.
- moccasin flower — the lady's-slipper.
- multiflora rose — a climbing or trailing rose, Rosa multiflora, of Japan and Korea, having hooked prickles and fragrant, dense clusters of flowers.
- myofibroblastic — Relating to myofibroblasts.
- national forest — forested land owned, maintained, and preserved by the U.S. government.
- nonprofessional — not a member of or trained in a specific profession.