23-letter words containing p, r, o, t, a, g
- pentagonal dodecahedron — pyritohedron.
- percentage distribution — a frequency distribution is which individual frequencies are shown as a percentage of the total frequencies
- photoelectric magnitude — the magnitude of a star determined using a photometer plus a filter to select light or other radiation of the desired wavelength
- precipitation hardening — a process in which alloys are strengthened by the formation, in their lattice, of a fine dispersion of one component when the metal is quenched from a high temperature and aged at an intermediate temperature
- presidential government — a system of government in which the powers of the president are constitutionally separate from those of the legislature.
- productivity bargaining — the process of reaching an agreement (productivity agreement) through collective bargaining whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
- progressive cavity pump — A progressive cavity pump is a pump with an electric motor that rotates rods to make fluid in cavities move upward.
- public-key cryptography — public-key encryption
- put the record straight — to correct an error or misunderstanding
- put through one's paces — a rate of movement, especially in stepping, walking, etc.: to walk at a brisk pace of five miles an hour.
- response generalization — generalization (def 4b).
- response-generalization — the act or process of generalizing.
- rub sb up the wrong way — If you rub someone up the wrong way in British English, or rub someone the wrong way in American English, you offend or annoy them without intending to.
- staggered directorships — a defence against unwelcome takeover bids in which a company resolves that its directors should serve staggered terms of office and that no director can be removed from office without just cause, thus preventing a bidder from controlling the board for some years
- structural anthropology — a school of anthropology founded by Claude Lévi-Strauss and based loosely on the principles of structural linguistics.
- suprasegmental phonemes — phonemes or features of speech, as pitch, stress, and juncture, that may extend over and modify series of segmental phonemes
- the teaching profession — the profession of a teacher
- to keep a straight face — If you manage to keep a straight face, you manage to look serious, although you want to laugh.
- to keep a tight rein on — If you keep a tight rein on someone, you control them firmly.
- to pay through the nose — If you say that you paid through the nose for something, you are emphasizing that you had to pay what you consider too high a price for it.
- to play for high stakes — to gamble on something very important
- to pluck up the courage — If you pluck up the courage to do something that you feel nervous about, you make an effort to be brave enough to do it.
- transplantation antigen — a histocompatibility antigen identified by its effect on the rejection of transplanted cells or tissues.
- triple expansion engine — (formerly) a steam engine in which the steam is expanded in three stages in cylinders of increasing diameter to accommodate the increasing volume of the steam
- voyageurs national park — a national park in N Minnesota. 343 sq. mi. (888 sq. km).