18-letter words containing p, r, o, f, i, t
- point of reference — A point of reference is something which you use to help you understand a situation or communicate with someone.
- population figures — population totals; statistics relating to the size of populations
- portrait of a lady — a novel (1881) by Henry James.
- potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.
- prefect of studies — a senior master in a Jesuit school or college
- preferred position — especially desirable advertising space for which, if it is specifically requested by the advertiser, a publication charges a premium rate.
- presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
- primate of england — a title of the archbishop of Canterbury.
- process identifier — (operating system) (PID) An integer used by the Unix kernel to uniquely identify a process. PIDs are returned by the fork system call and can be passed to wait() or kill() to perform actions on the given process.
- product life cycle — the four stages (introduction, growth, maturity, and decline) into one of which the sales of a product fall during its market life
- protein deficiency — a lack or insuffiency of protein
- provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
- purple loosestrife — an Old World plant, Lythrum salicaria, of the loosestrife family, widely naturalized in North America, growing in wet places and having spikes of reddish-purple flowers.
- rabbit-proof fence — a fence through which rabbits are unable to pass
- reinforced plastic — plastic with fibrous matter, such as carbon fibre, embedded in it to confer additional strength
- reproduction proof — repro proof.
- self-preoccupation — the state of being preoccupied.
- shoot from the hip — the act of shooting with a bow, firearm, etc.
- sonic depth finder — a sonar instrument that uses echolocation to measure depths under water.
- spectrofluorimeter — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- spirits of ammonia — a 10% solution of ammonia in alcohol
- territory of papua — a former territory of Australia, consisting of SE New Guinea and adjacent islands: now part of Papua New Guinea
- tip of the iceberg — a large floating mass of ice, detached from a glacier and carried out to sea.
- to play favourites — to display favouritism
- torsion-free group — a group in which every element other than the identity has infinite order.
- unfair competition — acts done by a seller to confuse or deceive the public with intent to acquire a larger portion of the market, as by cutting prices below cost, misleading advertising, selling a spurious product under a false identity, etc.
- visiting professor — a professor from another institution invited to teach at a university or college for a limited period, usually for a semester or one academic year.