15-letter words containing i, f, r
- dryland farming — a mode of farming, practiced in regions of slight or insufficient rainfall, that relies mainly on tillage methods rendering the soil more receptive of moisture and on the selection of suitable crops.
- dwarf poinciana — royal poinciana.
- early saxifrage — an eastern North American plant, Saxifraga virginiensis, of the saxifrage family, having toothed basal leaves and branched clusters of small white flowers.
- editor in chief — the policy-making executive or principal editor of a publishing house, publication, etc.
- electrification — The act of electrifying, or the state of being charged with electricity.
- enfant terrible — If you describe someone as an enfant terrible, you mean that they are clever but unconventional, and often cause problems or embarrassment for their friends or families.
- enfranchisement — The act of enfranchising.
- evens favourite — the favourite to win a race and on which the bookmakers are offering even odds.
- existence proof — non-constructive proof
- fabric softener — a substance added to fabrics during laundering to make them puffier and softer.
- facile princeps — an obvious leader
- factor analysis — the use of one of several methods for reducing a set of variables to a lesser number of new variables, each of which is a function of one or more of the original variables.
- factory chimney — a tall chimney of a factory
- factory farming — Factory farming is a system of farming which involves keeping animals indoors, often with very little space, and giving them special foods so that they grow more quickly or produce more eggs or milk.
- faculty advisor — a member of the faculty who gives advice to students
- faint-heartedly — nervously
- fair and square — free from bias, dishonesty, or injustice: a fair decision; a fair judge.
- fair employment — the policy or practice of employing people on the basis of their capabilities only, without regard to race, color, religion, sex, national origin, age, or disability.
- fair-haired boy — having light-colored hair.
- fairy footsteps — heavy footsteps
- fairy godfather — a kindly sponsor or guardian; godfather.
- fairy godmother — a kindly sponsor or guardian; godmother.
- faithworthiness — the quality of being faithworthy
- falling weather — wet weather, as rain or snow.
- false miterwort — foamflower.
- familiar spirit — a supernatural spirit often assuming animal form, supposed to attend and aid a witch, wizard, etc
- familiarisation — Alternative spelling of familiarization.
- familiarization — to make (onself or another) well-acquainted or conversant with something.
- family grouping — a system, used usually in the infant school, of grouping children of various ages together, esp for project work
- family practice — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
- fantasmagorical — Alternative form of phantasmagorical.
- farm gate price — the price for the sale of farm produce direct from the producer
- fashion-forward — relating to, anticipating, or reflecting the most up-to-date fashion trends
- 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.
- feast or famine — characterized by alternating, extremely high and low degrees of prosperity, success, volume of business, etc.: artists who lead a feast-or-famine life.
- feast-or-famine — characterized by alternating, extremely high and low degrees of prosperity, success, volume of business, etc.: artists who lead a feast-or-famine life.
- feather banding — decorative banding of veneer or inlay having the grain laid diagonally to the grain of the principal surface.
- featherstitched — Simple past tense and past participle of featherstitch.
- feature article — a feature article in a newspaper or magazine deals in depth with a topic or person
- federal holiday — a day which is a national holiday at the behest of the Federal Government
- fee-for-service — pertaining to the charging of fees for specific services rendered in health care, as distinguished from participating in a prepaid medical practice: fee-for-service medicine.
- feeding grounds — the place where animals gather to find food
- ferranti f100-l — (processor) A processor, with 16-bit addressing, registers and data paths and a 1-bit serial ALU. The F100-L could only access 32K of memory (one address bit was used for indirection). It was designed by a British company for the British Military. The unique feature of the F100-L was that it had a complete control bus available for a coprocessor. Any instruction the F100-L couldn't decode was sent directly to the coprocessor for processing. Applications for coprocessors at the time were limited, but the design is still used in modern processors, such as the National Semiconductor 32000 series. The disk operating system was written by Alec Cawley.
- ferric chloride — a compound that in its anhydrous form, FeCl 3 , occurs as a black-brown, water-soluble solid; in its hydrated form, FeCl 3 ⋅xH 2 O, it occurs in orange-yellow, deliquescent crystals: used chiefly in engraving, for deodorizing sewage, as a mordant, and in medicine as an astringent and styptic.
- ferrihemoglobin — methemoglobin.
- ferroelasticity — (physics) A phenomenon, analogous to ferromagnetism and ferroelectricity, in which spontaneous strain arises within a material.
- ferrous sulfide — a dark or black metallic crystalline compound, FeS, insoluble in water, soluble in acids, used in ceramics and to generate hydrogen sulfide.
- 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.
- fibrocartilages — Plural form of fibrocartilage.
- fideicommissary — the recipient of a fideicommissum.