13-letter words containing t, i, m, o, r
- priority mail — (in the U.S. Postal Service) mail consisting of merchandise weighing more than 12 ounces sent at first-class rates.
- prism diopter — a unit of prismatic deviation, in which the number one represents a prism that deflects a beam of light a distance of one centimeter on a plane placed normal to the initial direction of the beam and one meter away from the prism.
- prison inmate — a person who is confined in a prison
- pro-communist — (initial capital letter) a member of the Communist Party or movement.
- problematical — of the nature of a problem; doubtful; uncertain; questionable.
- profit margin — the percentage that profit constitutes of total sales.
- profit motive — the desire for profit that motivates one to engage in business ventures.
- 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.
- proper motion — Astronomy. the angular motion of a star relative to a suitably defined frame of reference, expressed in seconds of arc per year.
- protectionism — Economics. the theory, practice, or system of fostering or developing domestic industries by protecting them from foreign competition through duties or quotas imposed on importations.
- 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.
- psychometrics — the measurement of mental traits, abilities, and processes.
- psychrometric — relating to psychrometry
- pyrheliometer — an instrument for measuring the total intensity of the sun's energy radiation.
- 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
- question mark — Also called interrogation point, interrogation mark. a mark indicating a question: usually, as in English, the mark (?) placed after a question.
- 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.
- 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.
- reappointment — a fixed mutual agreement for a meeting; engagement: We made an appointment to meet again.
- recombination — any of several processes by which genetic material of different origins becomes combined. It most commonly occurs between two sets of parental chromosomes during production of germ cells
- recompilation — the act of compiling: the compilation of documents.
- recomposition — to compose again; reconstitute; rearrange.
- recomputation — an act, process, or method of computing; calculation.
- reconcilement — to cause (a person) to accept or be resigned to something not desired: He was reconciled to his fate.
- reconsignment — a consigning again.
- recontaminate — to contaminate (an area, person, hands, etc) again
- recrimination — the act of recriminating, or countercharging: Hope gave way to recrimination with both sides claiming the moral high ground.
- reexamination — further study or inspection
- refashionment — the act or state of being refashioned
- reformability — the extent to which something or someone is reformable; the capability or susceptibility to reform
- reformulation — to formulate again.
- regimentation — the act of regimenting or the state of being regimented.
- regiomontanus — Friedrich Max [free-drik maks;; German free-drikh mahks] /ˈfri drɪk mæks;; German ˈfri drɪx mɑks/ (Show IPA), 1823–1900, English Sanskrit scholar and philologist born in Germany.
- reinforcement — the act of reinforcing.
- reinvolvement — to include as a necessary circumstance, condition, or consequence; imply; entail: This job involves long hours and hard work.
- remonstration — to say or plead in protest, objection, or disapproval.
- remonstrative — to say or plead in protest, objection, or disapproval.