13-letter words containing n, a, d, i, r
- prison warder — an officer in charge of prisoners in a jail
- private brand — a product marketed under a private label.
- promised land — Heaven.
- propagandizer — a person who engages in, or subjects others to, propaganda
- prostaglandin — Biochemistry. any of a class of unsaturated fatty acids that are involved in the contraction of smooth muscle, the control of inflammation and body temperature, and many other physiological functions.
- prosthodontia — the branch of dentistry that deals with the restoration and maintenance of oral function by the replacement of missing teeth and other oral structures by artificial devices.
- prudentialism — a regard for prudential, rather than moral, considerations
- prudentialist — a person who acts prudentially
- prudentiality — prudential nature or practice
- quadraphonics — high-fidelity sound reproduction involving signals transmitted through four different channels.
- quadrennially — Every four years.
- quadrigeminal — Having four parts, or two pairs.
- quadrilingual — using or involving four languages: a quadrilingual person; a quadrilingual translation of the Bible.
- quadrillionth — a cardinal number represented in the U.S. by 1 followed by 15 zeros, and in Great Britain by 1 followed by 24 zeros.
- quadringenary — a 400th anniversary
- quadriphonics — quadraphony.
- quartodeciman — one of a group of early Christians who observed Easter on the day of the Jewish Passover regardless of whether or not it was Sunday
- racing driver — someone who drives a racing car in motor car races
- radhakrishnan — Sir Sarvepalli [suhr-vuh-puhl-ee] /ˌsʌr vəˈpʌl i/ (Show IPA), 1888–1975, president of India 1962–67.
- radial engine — an internal-combustion engine having the cylinders arranged in radial opposition, found mainly on older aircraft.
- radial motion — the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
- radialization — the act of forming or arranging in a radial pattern
- radiation fog — fog produced by the nocturnal cooling of the surface boundary layer to a temperature at which its content of water vapor condenses.
- radiationless — not emitting or producing radiation
- radio contact — communication or contact by means of radio waves
- radio control — remote control by means of radio signals from a transmitter
- radio horizon — the locus of points on the earth's surface where rays from a transmitting antenna are tangent to the surface. The radio horizon for a fixed antenna varies with refraction by the atmosphere of radio waves.
- radio silence — the absence, usually deliberately maintained, of radio transmissions
- radio station — station (def 8).
- radioactinium — the radioactive isotope of thorium having a mass number 227 and a half-life of 18.8 days. Symbol: RdAc, Th 227.
- radiolocation — the method or process of determining the position and velocity of an object by radar.
- raiding party — a group of people who together carry out a raid
- railroad line — railway route
- raison d'etat — a purely political reason for governmental action, based on the national interest and often violating principles of justice.
- raison d'etre — reason or justification for being or existence: Art is the artist's raison d'être.
- rally driving — the sport of taking part in motor rallies
- randomization — to order or select in a random manner, as in a sample or experiment, especially in order to reduce bias and interference caused by irrelevant variables; make random.
- rank and file — the members of a group or organization apart from its leaders or officers.
- rapid transit — a system of public transportation in a metropolitan area, usually a subway or elevated train system.
- rattlebrained — foolish; flighty; scatterbrained.
- re-admittance — permission or right to enter: admittance into the exhibit room.
- re-forwarding — toward or at a place, point, or time in advance; onward; ahead: to move forward; from this day forward; to look forward.
- reading chair — a chair of the 18th century having an adjustable reading stand attached to the back and a crest rail extending forward on both sides to form armrests, designed to be sat on facing the back.
- reading glass — a magnifying glass that people use to enlarge text to make it easier to read
- reading group — a group of people who meet regularly to discuss a book that they have all read
- reading light — any small electric light that you use for reading. You can usually move it in order to direct the light to where you need it for reading. It can be attached to a wall or shelf in the home, or be above your head inside an aircraft or other vehicle.
- reading speed — the rate at which something is read, often expressed in terms of words per minute. Reading speed is usually determined by the purpose of reading (for comprehension, learning, memorization, etc)
- reconsolidate — to bring together (separate parts) into a single or unified whole; unite; combine: They consolidated their three companies.
- recording van — a van containing sound and image recording equipment, used as a mobile recording studio
- redesignation — an act of designating.