16-letter words containing a, f, t, c
- radius of action — the maximum distance that a ship, aircraft, or land vehicle can travel from its base and return without refuelling
- rape of the lock — a mock-epic poem (1712) by Alexander Pope.
- rate of exchange — exchange rate.
- 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.
- 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
- 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.
- safety mechanism — a psychological or physiological response in an individual that protects the individual from harm
- safety-conscious — conscious of being safe and preventing danger
- 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.
- self-advancement — an act of moving forward.
- self-containment — the state of being self-contained.
- self-cultivation — the act or art of cultivating.
- self-deprecating — belittling or undervaluing oneself; excessively modest.
- self-deprecation — belittling or undervaluing oneself; excessively modest.
- self-deprecatory — belittling or undervaluing oneself; excessively modest.
- self-enhancement — to raise to a higher degree; intensify; magnify: The candlelight enhanced her beauty.
- self-exculpatory — intended to excuse oneself from blame or guilt
- self-explication — the act of explicating.
- self-lubricating — to apply some oily or greasy substance to (a machine, parts of a mechanism, etc.) in order to diminish friction; oil or grease (something).
- self-lubrication — the process of becoming lubricated without external factors
- self-maintenance — the act of maintaining: the maintenance of proper oral hygiene.
- self-replicating — reproducing itself by its own power or inherent nature: self-replicating organisms.
- self-vindicating — to clear, as from an accusation, imputation, suspicion, or the like: to vindicate someone's honor.
- self-vindication — the act of vindicating.
- shortfin corvina — See under corvina.
- silky flycatcher — any of several passerine birds of the family Ptilogonatidae, of the southwestern U.S. to Panama, related to the waxwings.
- slap in the face — smack on the cheek
- smelting furnace — an industrial oven used to heat ore in order to extract metal
- software package — bundle of files to execute computer program
- specific gravity — the ratio of the density of any substance to the density of some other substance taken as standard, water being the standard for liquids and solids, and hydrogen or air being the standard for gases.
- spreading factor — a substance, as hyaluronidase, that promotes the diffusion of a material through body tissues
- staffing officer — someone who recruits, hires, and ensures the interests of staff and employees in an organization
- stonecrop family — the plant family Crassulaceae, characterized by succulent herbaceous plants and shrubs with simple, fleshy leaves, clusters of small flowers, and dry, dehiscent fruit, and including hen-and-chickens, houseleek, kalanchoe, live-forever, orpine, sedum, and stonecrop.
- studentification — the renting of particular accommodation exclusively to students
- subjectification — to make subjective.
- superfecundation — the fertilization of two or more ova discharged at the same ovulation by successive acts of sexual intercourse.
- superficialities — being at, on, or near the surface: a superficial wound.
- superunification — a theory intended to describe the electromagnetic force, the strong force, the weak force, and gravity as a single, unified force.
- surface integral — the limit, as the norm of the partition of a given surface into sections of area approaches zero, of the sum of the product of the areas times the value of a given function of three variables at some point on each section.
- surface-printing — planography.