13-letter words containing m, o, r, t, a
- posttreatment — an act or manner of treating.
- potato-masher — a kitchen implement used to crush or mash potatoes
- potomac fever — the determination or fervor to share in the power and prestige of the U.S. government in Washington, D.C., especially by being appointed or elected to a government position.
- potomac river — a river flowing SE from the Allegheny Mountains in West Virginia, along the boundary between Maryland and Virginia to the Chesapeake Bay. 287 miles (460 km) long.
- praetorianism — the control of a society by force or fraud, especially when exercised through titular officials and by a powerful minority.
- pre-migration — the process or act of migrating.
- preadmonition — a forewarning, premonition; the act of admonishing in advance
- prebasic molt — the molt by which most birds replace all of their feathers, usually occurring annually after the breeding season.
- predominantly — having ascendancy, power, authority, or influence over others; preeminent.
- predominately — to be the stronger or leading element or force.
- predominating — to be the stronger or leading element or force.
- preformulated — to express in precise form; state definitely or systematically: He finds it extremely difficult to formulate his new theory.
- premedication — any drugs administered to sedate and otherwise prepare a patient for general anaesthesia
- premeditation — an act or instance of premeditating.
- prenomination — the act of naming in advance of a formal nomination
- pretournament — occurring prior to a tournament
- primary tooth — one of the temporary teeth of a mammal that are replaced by the permanent teeth.
- primatologist — the branch of zoology dealing with the primates.
- primordiality — constituting a beginning; giving origin to something derived or developed; original; elementary: primordial forms of life.
- primrose path — a way of life devoted to irresponsible hedonism, often of a sensual nature: The evangelist exhorted us to avoid the primrose path and stick to the straight and narrow.
- priority mail — (in the U.S. Postal Service) mail consisting of merchandise weighing more than 12 ounces sent at first-class rates.
- prison inmate — a person who is confined in a prison
- problem state — IBM jargon for user mode, the opposite of "supervisor state". On IBM System 360, 370 and 390 mainframes privileged instructions may only be executed in "supervisor state". Application programs request the operating system to perform these operations by using the Supervisor Call (SVC) instruction.
- problematical — of the nature of a problem; doubtful; uncertain; questionable.
- profit margin — the percentage that profit constitutes of total sales.
- profit-making — A profit-making business or organization makes a profit.
- progametangia — Mycology. the hyphal tip of certain fungi that produces the gametangium and subsequent gamete.
- promonarchist — the principles of monarchy.
- promotability — to help or encourage to exist or flourish; further: to promote world peace.
- prostatectomy — excision of part or all of the prostate gland.
- protanomalous — of, relating to, or affected by protanomaly
- protest march — public demonstration
- protestantism — the religion of Protestants.
- proto-elamite — the indigenous script of Elam, found on inscriptions and tablets from the fourth millennium b.c.
- protoactinium — protactinium.
- 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
- quaterpolymer — A copolymer derived from four species of monomer.
- question mark — Also called interrogation point, interrogation mark. a mark indicating a question: usually, as in English, the mark (?) placed after a question.
- rabbath ammon — Amman.
- 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.
- radioactinium — the radioactive isotope of thorium having a mass number 227 and a half-life of 18.8 days. Symbol: RdAc, Th 227.
- radiotelegram — a message transmitted by radiotelegraphy.
- ramifications — the act or process of ramifying.
- 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.
- rapprochement — an establishment or reestablishment of harmonious relations: a rapprochement reached between warring factions.
- rational form — a quotient of two polynomials with integral coefficients.
- ray tomlinson — (person) An engineer at Bolt Beranek and Newman who, in July 1972 while designing the first[?] electronic mail program, chose the commercial at symbol "@" to separate the user name from the computer name.
- reaction time — the interval between stimulation and response.
- reactionarism — of, pertaining to, marked by, or favoring reaction, especially extreme conservatism or rightism in politics; opposing political or social change.
- reaffirmation — the act or an instance of affirming; state of being affirmed.