17-letter words containing a, n, t, i, f, r
- probation officer — an officer who investigates and reports on the conduct of offenders who are free on probation.
- proportional font — a font type in which the width of letters and symbols varies depending on the letter or symbol
- protection factor — a figure representing the relative degree of protection from the sun's rays afforded by a particular sunscreen
- put in a word for — to make favourable mention of (someone); recommend
- rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
- reduction formula — a formula, such as sin (90° ± A) = cos A, expressing the values of a trigonometric function of any angle greater than 90° in terms of a function of an acute angle
- reflection nebula — a cloud of interstellar gas and dust that reflects the light of neighboring stars.
- repeating firearm — a firearm capable of discharging a number of shots without reloading.
- return of capital — A return of capital is a situation in which you receive back money that was previously invested.
- rotation of crops — a system of rotating in a fixed order the kinds of crops, as grain or grass, grown in the same field, to maintain soil fertility
- safety in numbers — If you say that there is safety in numbers, you mean that you are safer doing something if there are a lot of people doing it rather than doing it alone.
- safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
- saint elmo's fire — corona discharge.
- sanitary landfill — landfill.
- scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
- schiff-s--reagent — a solution of rosaniline and sulfurous acid in water, used to test for the presence of aldehydes.
- scratch 'n' sniff — denoting a product that releases a smell when scratched
- self-administered — to manage (affairs, a government, etc.); have executive charge of: to administer the law.
- self-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- self-confirmation — the act of confirming.
- self-consecration — the act of setting oneself to a task or vocation without ordination by others or by a religious body.
- self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
- self-depreciating — self-deprecating.
- self-entertaining — affording entertainment; amusing; diverting: We spent an entertaining evening at the theater.
- self-impregnating — to make pregnant; get with child or young.
- self-perpetuating — continuing oneself in office, rank, etc., beyond the normal limit.
- self-presentation — an act of presenting.
- self-preservation — preservation of oneself from harm or destruction.
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- self-renunciation — renunciation of one's own will, interests, etc.
- semi-manufactured — the making of goods or wares by manual labor or by machinery, especially on a large scale: the manufacture of television sets.
- separating funnel — a large funnel having a tap in its output tube, used to separate immiscible liquids
- significant other — Sociology. a person, as a parent or peer, who has great influence on one's behavior and self-esteem.
- silk manufacturer — a person or business that is involved in the manufacture of silk thread and fabric
- software engineer — a person who writes computer programs
- south farmingdale — a town on central Long Island, in SE New York.
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- standard function — a subprogram provided by a translator that carries out a task, for example the computation of a mathematical function, such as sine, square root, etc
- stannous fluoride — a white, crystalline powder, SnF 2 , slightly soluble in water: used as a source of fluorine in the prevention of dental caries, especially as a toothpaste additive.
- stare in the face — to gaze fixedly and intently, especially with the eyes wide open.
- strait of otranto — a stretch of water between SE Italy and Albania, connecting the Adriatic Sea with the Ionian Sea; of strategic importance during World War I
- sufficient reason — the principle that nothing happens by pure chance, but that an explanation must always be available
- teaching software — computer software for use in providing online education
- terminal platform — (in the oil industry) an offshore platform from which oil or gas is pumped ashore through a pipeline
- the carboniferous — the Carboniferous period or rock system
- the confederation — the original 13 states of the United States of America constituted under the Articles of Confederation and superseded by the more formal union established in 1789
- the faint-hearted — people of a nervous disposition
- the final curtain — the closing of the curtain at the end of the action of a play
- the morning after — the aftereffects of excess, esp a hangover
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.