17-letter words containing o, c, t, f
- prefect apostolic — the administrator, usually below the rank of bishop, in charge of a prefecture apostolic.
- 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
- 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
- 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
- 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.
- 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.
- 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).
- 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
- 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
- safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
- scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
- scientific method — a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
- scientific theory — a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.
- self-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- self-commendation — the act of commending; recommendation; praise: commendation for a job well done.
- self-condemnation — the act of condemning.
- self-conditioning — Also called operant conditioning, instrumental conditioning. a process of changing behavior by rewarding or punishing a subject each time an action is performed until the subject associates the action with pleasure or distress.
- self-confirmation — the act of confirming.
- self-consecration — the act of setting oneself to a task or vocation without ordination by others or by a religious body.
- self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
- self-constituting — to compose; form: mortar constituted of lime and sand.
- self-dissociation — an act or instance of dissociating.
- self-emancipation — the act of emancipating.
- self-incompatible — not capable of self-pollination.
- self-introduction — the act of introducing or the state of being introduced.
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- self-recollection — the act or power of recollecting, or recalling to mind; remembrance.
- self-renunciation — renunciation of one's own will, interests, etc.
- self-reproduction — the act or process of reproducing.
- self-satisfaction — a usually smug satisfaction with oneself, one's achievements, etc.
- set one's cap for — a close-fitting covering for the head, usually of soft supple material and having no visor or brim.
- shoot one's cuffs — to expose one's shirt cuffs beyond the coat sleeves
- sign of the cross — a movement of the hand to indicate a cross, as from forehead to breast and left shoulder to right or, in the Eastern Orthodox Church, from right shoulder to left.
- significant other — Sociology. a person, as a parent or peer, who has great influence on one's behavior and self-esteem.