16-letter words containing a, t, f
- practical effect — Usually, practical effects. a special effect that is created live on the set of a film, using real-world objects.
- prespecification — the act of specifying.
- prince's feather — a tall, showy plant, Amaranthus hybridus erythrostachys, of the amaranth family, having reddish foliage and thick spikes of small, red flowers.
- prince's-feather — a tall, showy plant, Amaranthus hybridus erythrostachys, of the amaranth family, having reddish foliage and thick spikes of small, red flowers.
- principal rafter — a diagonal member of a roof principal, usually forming part of a truss and supporting the purlins on which the common rafters rest.
- proof of postage — a document, such as a receipt, etc, that proves that you have posted or mailed something
- put a foot wrong — to make a mistake
- quantum sufficit — as much as suffices; enough.
- quarter-finalist — A quarter-finalist is a person or team that is competing in a quarter-final.
- quasi-scientific — of or relating to science or the sciences: scientific studies.
- question of fact — a question concerning the reality of an alleged event or circumstance in a trial by jury, usually determined by the jury.
- quinquefoliolate — (botany) Having five leaflets.
- radius of action — the maximum distance that a ship, aircraft, or land vehicle can travel from its base and return without refuelling
- ramen profitable — If a startup business is ramen profitable, it is barely profitable, just enough to allow the founder to live on the cheapest diet.
- rape of the lock — a mock-epic poem (1712) by Alexander Pope.
- rate of exchange — exchange rate.
- rational fortran — (language) (RATFOR) Brian Kernighan's Fortran preprocessor that allows programming with C-like control flow. RATFOR is mainly of historical significance. A translator from Ratfor to Fortran IV was posted to comp.sources.Unix volume 13.
- rattlesnake fern — any of several American grape ferns, especially Botrychium virginianium, having clusters of sporangia resembling the rattles of a rattlesnake.
- rattlesnake flag — any of a number of U.S. flags that bear a picture of a rattlesnake and the motto “Don't Tread on Me,” especially those used during the French and Indian War and the American Revolution.
- reasons of state — political justifications for an immoral act
- reclassification — categorization in a different way
- reflection plane — a plane through a crystal that divides the crystal into two halves that are mirror images of each other.
- refracting angle — an angle formed by a ray which is refracted and which is perpendicular to the refracting surface
- refractive index — index of refraction.
- refrigerator car — a freight car having either an ice chest or machinery for chilling perishables and sometimes having a heating unit to keep perishables from freezing.
- registration fee — a fee paid to register, enrol or sign up for (a course, etc)
- reidentification — an act or instance of identifying; the state of being identified.
- releasing factor — a substance usually of hypothalamic origin that triggers the release of a particular hormone from an endocrine gland.
- rich text format — (RTF) An interchange format from Microsoft for exchange of documents between Word and other document preparation systems.
- right about face — Military. a command, given to a soldier or soldiers at attention, to turn the body about toward the right so as to face in the opposite direction. the act of so turning in a prescribed military manner.
- romantic fiction — a genre of fiction focused on romantic love
- root normal form — (RNF) Head Normal Form in graph rewriting.
- rotation of axes — a process of replacing the axes in a Cartesian coordinate system with a new set of axes making a specified angle with and having the same origin as the original axes.
- rule of the road — any of the regulations concerning the safe handling of vessels under way with respect to one another, imposed by a government on ships in its own waters or upon its own ships on the high seas.
- sabattier effect — the alteration of the image tones of a photographic print by briefly reexposing the negative after it has been partially developed.
- saccharification — to convert (starch) into sugar.
- safe deposit box — A safe deposit box is a small box, usually kept in a special room in a bank, in which you can store valuable objects.
- safe-deposit box — a lockable metal box or drawer, especially in a bank vault, used for safely storing valuable papers, jewelry, etc.
- safety mechanism — a psychological or physiological response in an individual that protects the individual from harm
- safety standards — standards prescribed (by a regulatory body, etc) that must be adhered to to ensure a product, event, etc, is safe and not dangerous
- safety-conscious — conscious of being safe and preventing danger
- santa fe springs — a city in SW California, near Los Angeles: oil wells.
- sawn-off shotgun — A sawn-off shotgun is a shotgun on which the barrel has been cut short. Guns like this are often used by criminals because they can be easily hidden.
- schiff's reagent — a solution of rosaniline and sulfurous acid in water, used to test for the presence of aldehydes.
- scotch blackface — one of a Scottish breed of mountain sheep having a black face and growing long, coarse wool.
- seat of learning — People sometimes refer to a university or a similar institution as a seat of learning.
- self-abandonment — absence or lack of personal restraint.
- self-advancement — an act of moving forward.
- self-advertising — the act or practice of calling public attention to one's product, service, need, etc., especially by paid announcements in newspapers and magazines, over radio or television, on billboards, etc.: to get more customers by advertising.
- self-affirmation — the act or an instance of affirming; state of being affirmed.