23-letter words containing p, a, g, e, c
- 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
- physiological phonetics — the branch of phonetics that deals with the motive processes, anatomical measurements, spirometric properties, muscle and membrane tone, and kinetic aspects of the production of speech and with related aspects of the reception of speech.
- 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
- private branch exchange — (communications) (PBX) A telephone exchange local to a particular organisation who use, rather than provide, telephone services. The earliest PBXs were manual (Private Manual Branch EXchange, PMBX) but are now more likely to be automatic (Private Automatic Branch eXchange).
- process gas compression — Process gas compression is a procedure for pressurizing and circulating gas through a process by compressing it in a cylinder, to enhance conditions for chemical reaction.
- 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.
- slum clearance campaign — a campaign to rehouse those people who live in a slum area, and to prepare the area for demolition and rebuilding
- spigot and socket joint — a joint between two pipes using male and female parts
- 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
- the teaching profession — the profession of a teacher
- thompson submachine gun — a portable, .45-caliber, automatic weapon designed to be fired from the shoulder or hip.
- to get/put sb's back up — If someone or something puts your back up or gets your back up, they annoy you.
- to keep a straight face — If you manage to keep a straight face, you manage to look serious, although you want to laugh.
- 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.
- to send someone packing — If you send someone packing, you make them go away.
- topological equivalence — the property of two topological spaces such that there is a homeomorphism from one to the other.