13-letter words containing f, t
- rat claw foot — an elongated foot having the form of a thin claw grasping a ball.
- rat-tail file — a long, narrow file having a circular cross section.
- ratbite fever — either of two relapsing febrile diseases, widely distributed geographically, caused by infection with Streptobacillus moniliformis or Spirillum minor and transmitted by rats.
- rational form — a quotient of two polynomials with integral coefficients.
- reaffirmation — the act or an instance of affirming; state of being affirmed.
- recomfortless — having no comfort; comfortless
- rectification — the act of rectifying, or the fact of being rectified.
- reel of three — (in Scottish country dancing) a figure-of-eight movement danced by three people
- refashionment — the act or state of being refashioned
- referentially — having reference: referential to something.
- reflectograph — a type of mechanical instrument used for communication with spirits or the dead
- reflectometer — a device for measuring reflectance.
- reflectometry — the study or science of reflectometer usage and design
- reflex-action — Physiology. noting or pertaining to an involuntary response to a stimulus, the nerve impulse from a receptor being transmitted inward to a nerve center that in turn transmits it outward to an effector.
- refocillation — the restoring of strength by refreshment or revivement
- reforestation — to replant trees on (land denuded by cutting or fire).
- reformability — the extent to which something or someone is reformable; the capability or susceptibility to reform
- reformulation — to formulate again.
- refractometer — an instrument for determining the refractive index of a substance.
- refractometry — an instrument for determining the refractive index of a substance.
- refrigeration — the act or process of refrigerating.
- refundability — to give back or restore (especially money); repay.
- refurbishment — to furbish again; renovate; brighten: to refurbish the lobby.
- reinfestation — the act of infesting; state of being infested.
- reinforcement — the act of reinforcing.
- relief troops — soldiers sent to an area of conflict or a disaster area in order to provide aid or assistance there
- remanufacture — to refurbish (a used product) by renovating and reassembling its components: to remanufacture a vacuum cleaner.
- reptiliferous — (of rocks, etc) yielding fossilized reptiles
- retrofittable — to modify equipment (in airplanes, automobiles, a factory, etc.) that is already in service using parts developed or made available after the time of original manufacture.
- retrofittings — acts of retrofitting
- retroflection — a bending backward.
- return flight — a flight going back
- reunification — the process of unifying or uniting; union: the unification of the 13 original colonies.
- reverse fault — a fault in which the rock above the fault plane is displaced upward relative to the rock below the fault plane (opposed to gravity fault).
- rhesus factor — Rh factor.
- right fielder — the player whose position is right field.
- right to life — When people talk about an unborn baby's right to life, they mean that a baby has the right to be born, even if it has a severe disability or if its mother does not want it.
- right-justify — If printed text is right-justified, each line finishes at the same distance from the right-hand edge of the page or column.
- right-to-life — pertaining to or advocating laws making abortion, especially abortion-on-demand, illegal; antiabortion: right-to-life advocates.
- ripple effect — a spreading effect or series of consequences caused by a single action or event.
- river traffic — the boats that sail on a river
- robert fulton — Robert, 1765–1815, U.S. engineer and inventor: builder of the first profitable steamboat.
- role conflict — emotional conflict arising when competing demands are made on an individual in the fulfillment of his or her multiple social roles.
- root of unity — a complex number that when raised to some positive integral power results in 1.
- rule of three — the method of finding the fourth term in a proportion when three terms are given.
- rule of thumb — a general or approximate principle, procedure, or rule based on experience or practice, as opposed to a specific, scientific calculation or estimate.
- russification — Russianize (defs 1, 2).
- rutherfordium — a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Rf; atomic number: 104.
- safari jacket — bush jacket.
- safety device — A safety device is a piece of equipment such as a fire extinguisher, safety belt, or burglar alarm that reduces loss or damage from a fire, accident, or break-in.