16-letter words containing i, r, o, a, t, e
- past progressive — a verb form consisting of an auxiliary be in the past tense followed by a present participle and used especially to indicate that an action or event was incomplete or in progress at a point of reference in the past, as was sleeping in I was sleeping when the phone rang.
- pastoral epistle — any one of three New Testament books, I or II Timothy or Titus, that stress pastoral and ecclesiastical concerns.
- peano arithmetic — (mathematics) Giuseppe Peano's system for representing natural numbers inductively using only two symbols, "0" (zero) and "S" (successor). This system could be expressed as a recursive data type with the following Haskell definition: data Peano = Zero | Succ Peano The number three, usually written "SSS0", would be Succ (Succ (Succ Zero)). Addition of Peano numbers can be expressed as a simple syntactic transformation: plus Zero n = n plus (Succ m) n = Succ (plus m n) (1995-03-28)
- pectoralis major — the larger of the two large chest muscles that assist in movements of the shoulder and upper arm
- pectoralis minor — the smaller of the two large chest muscles that assist in movements of the shoulder and upper arm
- pension mortgage — an arrangement whereby a person takes out a mortgage and pays the capital repayment instalments into a pension fund and the interest to the mortgagee. The loan is repaid out of the tax-free lump sum proceeds of the pension plan on the borrower's retirement
- percentage point — difference: one per cent
- periodic tenancy — the letting of a dwelling for a repeated short term, as by the week, month, or quarter, with no end date
- perpetual motion — the motion of a theoretical mechanism that, without any losses due to friction or other forms of dissipation of energy, would continue to operate indefinitely at the same rate without any external energy being applied to it.
- personal details — details about a person such as their name and address
- personal liberty — the liberty of an individual to do his or her will freely except for those restraints imposed by law to safeguard the physical, moral, political, and economic welfare of others.
- personal stylist — a person employed by a rich or famous client to offer advice on clothes, hairstyles, and other aspects of personal appearance
- personal trainer — a person who works one-on-one with a client to plan or implement an exercise or fitness regimen.
- personal tuition — private tuition
- personality cult — deliberately cultivated adulation of a person, esp a political leader
- personality test — an instrument, as a questionnaire or series of standardized tasks, used to measure personality characteristics or to discover personality disorders.
- personality type — a cluster of personality traits commonly occurring together
- petrol rationing — a scheme rationing the amount of petrol that an individual is allowed to purchase
- pharmacogenetics — the branch of pharmacology that examines the relation of genetic factors to variations in response to drugs.
- pharmacokinetics — the branch of pharmacology that studies the fate of pharmacological substances in the body, as their absorption, distribution, metabolism, and elimination.
- phosphor fatigue — screen saver
- photopolarimeter — a polarimeter that uses a photocell.
- photorespiration — the oxidation of carbohydrates in many higher plants in which they get oxygen from light and then release carbon dioxide, somewhat different from photosynthesis.
- phytoremediation — a process of decontaminating soil or water by using plants and trees to absorb or break down pollutants.
- picture postcard — postcard (def 1).
- pithecanthropine — of, belonging to, or resembling a former genus (Pithecanthropus, now classified as Homo erectus) of extinct early humans, who lived in Java, China, Europe, and Africa
- pithecanthropoid — of, relating to, or resembling the former genus Pithecanthropus or one of its members.
- plaster of paris — calcined gypsum in white, powdery form, used as a base for gypsum plasters, as an additive of lime plasters, and as a material for making fine and ornamental casts: characterized by its ability to set rapidly when mixed with water.
- pneumatic trough — a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.
- pocket billiards — pool2 (def 1).
- poitou-charentes — a region of W central France, on the Bay of Biscay: mainly low-lying
- polar coordinate — Usually, polar coordinates. one of two coordinates used to locate a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle)
- poor white trash — white trash.
- port authorities — the body with overall responsibility for a port
- portable airtime — (communications, wireless) A wireless, digital communications system enabling user-to-user voice communication, "quicknotes", and alphanumeric messaging.
- portrait gallery — a gallery where pictures are displayed
- portrait painter — artist: paints likenesses
- portuguese india — a former Portuguese overseas territory on the W coast of India, consisting of the districts of Gôa, Daman, and Diu: annexed by India December 1961. Capital: Gôa.
- posigrade rocket — an auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight.
- post-reformation — the act of reforming; state of being reformed.
- post-renaissance — the activity, spirit, or time of the great revival of art, literature, and learning in Europe beginning in the 14th century and extending to the 17th century, marking the transition from the medieval to the modern world.
- potential energy — the energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system.
- practical reason — (in Kantian ethics) reason applied to the problem of action and choice, especially in ethical matters.
- practice session — a period of training that takes place over a set period of time, for example an hour or several hours
- praetorian guard — the bodyguard of a military commander, especially the imperial guard stationed in Rome.
- pragmatic theory — the theory of truth that the truth of a statement consists in its practical consequences, especially in its agreement with subsequent experience.
- pre-conversation — informal interchange of thoughts, information, etc., by spoken words; oral communication between persons; talk; colloquy.
- pre-emancipation — the act of emancipating.
- pre-registration — the act of registering.
- pre-solicitation — the act of soliciting.