17-letter words containing t, f, o
- point-of-purchase — designating or in use at a retail outlet where an item can be purchased; point-of-sale: point-of-purchase displays to entice the buyer.
- polarizing filter — a camera lens filter used to control the plane of polarization of light entering the lens.
- political refugee — a person who has fled from a homeland because of political persecution.
- port orford cedar — a tall tree, Chamaecyparis lawsoniana, of coastal Oregon, having flattened, scalelike foliage and wood highly valued as timber.
- portfolio manager — a person employed by others to make investments for them
- positive definite — (of a quadratic form) positive for all real values of the variables, where the values are not all zero.
- positive feedback — Electronics. the process of returning part of the output of a circuit, system, or device to the input, either to oppose the input (negative feedback) or to aid the input (positive feedback) acoustic feedback.
- potassium sulfate — a crystalline, water-soluble solid, K 2 SO 4 , used chiefly in the manufacture of fertilizers, alums, and mineral water, and as a reagent in analytical chemistry.
- potato leafhopper — any of various leafhoppers that are serious pests, damaging a wide variety of cultivated and wild plants, especially potatoes.
- power of attorney — a written document given by one person or party to another authorizing the latter to act for the former.
- pre-configuration — the relative disposition or arrangement of the parts or elements of a thing.
- pre-manifestation — an act of manifesting.
- pre-modifications — an act or instance of modifying.
- pre-qualification — a quality, accomplishment, etc., that fits a person for some function, office, or the like.
- prefect apostolic — the administrator, usually below the rank of bishop, in charge of a prefecture apostolic.
- preferential shop — a shop in which union members are preferred, usually by agreement of an employer with a union.
- probation officer — an officer who investigates and reports on the conduct of offenders who are free on probation.
- procurator fiscal — In the Scottish legal system, the procurator fiscal is a public official who puts people on trial.
- profile component — attainment targets in different subjects brought together for the general assessment of a pupil
- proof of identity — a document or documents used to verify someone's identity
- proportional font — a font type in which the width of letters and symbols varies depending on the letter or symbol
- protection factor — a figure representing the relative degree of protection from the sun's rays afforded by a particular sunscreen
- protective tariff — a tariff levied on imports to protect the domestic economy rather than to raise revenue
- pseudo-scientific — any of various methods, theories, or systems, as astrology, psychokinesis, or clairvoyance, considered as having no scientific basis.
- publicity officer — a person who is employed to get publicity for an organization, or to provide information about it
- put in a word for — to make favourable mention of (someone); recommend
- put one's feet up — relax
- put the finger on — to inform on or identify, esp for the police
- quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
- rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
- recruiting office — an office where staff are recruited, esp by the military
- reduction formula — a formula, such as sin (90° ± A) = cos A, expressing the values of a trigonometric function of any angle greater than 90° in terms of a function of an acute angle
- reflection nebula — a cloud of interstellar gas and dust that reflects the light of neighboring stars.
- refractory period — a short period after a nerve or muscle cell fires during which the cell cannot respond to additional stimulation.
- refuse collection — the collection of rubbish and waste, usually in a rubbish or refuse truck, before final disposal
- refuse destructor — someone responsible for or something that destructs or destroys rubbish and waste
- register of wills — (in some states of the U.S.) the official charged with the probate of wills or with the keeping of the records of the probate court.
- registered office — official business address
- resurrection fern — a drought-resistant, evergreen, epiphytic fern, Polypodium polypodioides, of subtropical to tropical America, appearing to be a ball of coiled, dead leaves in the dry season but reviving with moisture.
- retention of risk — Retention of risk is the net amount of any risk which an insurance company does not reinsure but keeps for its own account.
- return of capital — A return of capital is a situation in which you receive back money that was previously invested.
- returning officer — a public official appointed to conduct and preside at an election.
- rheumatoid factor — an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
- right off the bat — Sports. the wooden club used in certain games, as baseball and cricket, to strike the ball. a racket, especially one used in badminton or table tennis. a whip used by a jockey. the act of using a club or racket in a game. the right or turn to use a club or racket.
- rock of gibraltar — a British crown colony comprising a fortress and seaport located on a narrow promontory near the S tip of Spain. 1.875 sq. mi. (5 sq. km).
- roof of the world — Tibet, Plateau of.
- rotation of crops — a system of rotating in a fixed order the kinds of crops, as grain or grass, grown in the same field, to maintain soil fertility
- rough puff pastry — a rich flaky pastry made with butter and used for pie-crusts, flans, etc
- rush-hour traffic — the large number of vehicles that move along roads, travelling to or from work at the beginning and end of the working day
- safety inspection — an inspection of a place carried out to ensure that it is safe and not dangerous