16-letter words containing p, o, t, a
- prophylactically — defending or protecting from disease or infection, as a drug.
- proposal writing — Extension of Fortran for proposal writing.
- proprietary name — a name of a product or service that is protected by a patent, copyright, or trademark and cannot be used by another party for commercial purposes without permission of the registered owner or licensee.
- propylthiouracil — a white crystalline compound, C 7 H 1 0 N 2 OS, that interferes with the synthesis of thyroid hormone by the thyroid gland: used in the treatment of hyperthyroidism.
- prosecution case — the case brought against someone by a legal authority
- protection ratio — the minimum acceptable ratio between the amplitudes of a wanted radio or television broadcast signal and any interfering signal
- protestant ethic — work ethic.
- proto-algonquian — the unattested parent language from which the Algonquian languages are descended.
- provost sergeant — the senior noncommissioned officer of a prison or other confinement facility whose chief duty is the supervision of prisoners and of the military police unit.
- proxima centauri — the nearest star to the sun at a distance of 4.3 light-years, part of the Alpha Centauri triple-star system located in the constellation Centaurus.
- proxime accessit — the person coming next after the winner in a competitive examination or an academic prize giving; runner-up
- pseudo-patriotic — of, like, suitable for, or characteristic of a patriot.
- pseudo-political — of, relating to, or concerned with politics: political writers.
- pseudo-realistic — interested in, concerned with, or based on what is real or practical: a realistic estimate of costs; a realistic planner.
- pseudo-spiritual — of, relating to, or consisting of spirit; incorporeal.
- pseudocopulation — pollination of plants, esp orchids, by male insects while attempting to mate with flowers that resemble the female insect
- pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pseudoperipteral — having a freestanding colonnade at each end, with engaged columns at the sides.
- psychoanalytical — a systematic structure of theories concerning the relation of conscious and unconscious psychological processes.
- psychogeriatrics — the psychology of old age.
- ptolemaic system — a system elaborated by Ptolemy and subsequently modified by others, according to which the earth was the fixed center of the universe, with the heavenly bodies moving about it.
- public relations — (used with a plural verb) the actions of a corporation, store, government, individual, etc., in promoting goodwill between itself and the public, the community, employees, customers, etc.
- public transport — fare-paying travel
- publication date — the date on which a book or periodical is or is planned to be published.
- pulmonary artery — an artery conveying venous blood from the right ventricle of the heart to the lungs.
- pulse modulation — a type of modulation in which a train of pulses is used as the carrier wave, one or more of its parameters, such as amplitude, being modulated or modified in order to carry information
- punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
- punctuationalism — punctuated equilibrium.
- pure watercolour — water-soluble pigment, applied in transparent washes and without the admixture of white pigment in the lighter tones
- put (out) to sea — to sail away from land
- put a foot wrong — to make a mistake
- put a sock in it — be quiet!
- put in mothballs — to postpone work on (a project, activity, etc)
- put one's oar in — to interfere or interrupt
- put out to grass — If you say that someone is being put out to grass, you mean they are no longer being employed because they are considered to be too old or no longer useful.
- put pen to paper — If you put pen to paper, you write something.
- quantum computer — a computer that makes use of the quantum states of electrons or other particles to store and process information as quantum bits.
- quasi-diplomatic — of, relating to, or engaged in diplomacy: diplomatic officials.
- radiotransparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
- ramen profitable — If a startup business is ramen profitable, it is barely profitable, just enough to allow the founder to live on the cheapest diet.
- rape of the lock — a mock-epic poem (1712) by Alexander Pope.
- re-apportionment — the act of redistributing or changing the apportionment of something.
- re-appropriation — the act of appropriating.
- re-chromatograph — to separate and analyse (a mixture of liquids or gases) by means of chromatography a second or further time
- recapitalization — a revision of a corporation's capital structure by an exchange of securities.
- reconceptualized — to form into a concept; make a concept of.
- record separator — (character) (RS) ASCII character 30.
- redemption value — the price at which the issuing company may choose to repurchase a security before its maturity date
- reflection plane — a plane through a crystal that divides the crystal into two halves that are mirror images of each other.
- reinterpretation — the act of interpreting; elucidation; explication: This writer's work demands interpretation.