17-letter words containing a, t, o, n
- protection factor — a figure representing the relative degree of protection from the sun's rays afforded by a particular sunscreen
- protection racket — a criminal activity in which money gangsters extort money from victims in exchange for freedom from molestation
- prothoracic gland — either of a pair of endocrine glands in the anterior thorax of some insects, functioning to promote the series of molts from hatching to adulthood.
- protocol analyser — (communications, hardware, networking, testing, tool) Any device that captures and interprets the network traffic between two or more connected computer systems. The traffic can then be decoded so that it is possible to see what processes are occurring. By examining the flow of traffic, protocol analysers can be used to find out where problems (such as bottlenecks or the failure of a network device) are on a LAN. Advanced protocol analysers can also provide statistics on the traffic that can help to identify trends that may in future lead to further problems with the network.
- provincialization — to make provincial in character.
- pseudo-humanistic — a person having a strong interest in or concern for human welfare, values, and dignity.
- psychodiagnostics — the study and evaluation of character or personality in terms of behavioral and anatomical traits, as gesture, posture and physiognomy.
- psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
- public accountant — an accountant whose services are available to the public at large, in contrast to one employed on a full-time basis by a company.
- punitive taxation — a form of taxation that is very severe and that people find very difficult to pay
- put a dampener on — To put a dampener on something means the same as to put a damper on it.
- put in a word for — to make favourable mention of (someone); recommend
- put into practice — If you put a belief or method into practice, you behave or act in accordance with it.
- put on a pedestal — an architectural support for a column, statue, vase, or the like.
- put on the market — offer for sale
- put one's hand to — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- put up at auction — to offer for sale at an auction
- pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
- quantity discount — When you receive a quantity discount from a store or supplier, you pay less because you have bought a large quantity of goods. Also known as bulk buying discount.
- quantity surveyor — A quantity surveyor is a person who calculates the cost and amount of materials and workers needed for a job such as building a house or a road.
- quantum computing — quantum computer
- quattuordecillion — a cardinal number represented in the U.S. by 1 followed by 45 zeros, and in Great Britain by 1 followed by 84 zeros.
- quick on the draw — having fast reflexes
- radiation pattern — the graphic representation of the strength and direction of electromagnetic radiation in the vicinity of a transmitting aerial
- radiation therapy — x-rays used as treatment
- radio in the loop — Wireless Local Loop
- radio-transparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
- rainbow coalition — a political grouping together by several minority parties
- rapid prototyping — (programming) The creation of a working model of a software module to demonstrate the feasibility and suitability of the function. The prototype is expected to be replaced or refined before inclusion in the final product. Rapid prototyping contrasts with a DIRFT approach which emphasises careful design and implementation to avoid the overheads of debugging and testing prototype code. Rapid prototyping is appropriate when the requirements are unclear or likely to change (which is most of the time).
- rational function — a function that can be written as the quotient of two polynomials with integral coefficients.
- rattle one's dags — to hurry up
- recoil escapement — anchor escapement.
- recreation centre — a facility open to the public for leisure and recreation activities
- recreation ground — an open space for public recreation, esp one in a town, with swings and slides, etc, for children
- recreational drug — drug taken for pleasure
- recreationalist's — recreationist.
- recrystallization — to become crystallized again.
- 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.
- regent honeyeater — a large brightly-coloured Australian honeyeater, Zanthomiza phrygia
- rehospitalization — the act, process, or state of being hospitalized.
- rental collection — a group of books, in a public or other free library, for which a borrower must pay a fee.
- repertory company — repertory (def 2).
- rescue operations — operations or organized procedures to bring people or a person out of danger, attack, harm, etc
- respiratory chain — a series of mitochondrial proteins that transport electrons of hydrogen, released in the Krebs cycle, from acetyl coenzyme A to inhaled oxygen to form H 2 O: the energy released in the process is conserved as ATP.
- restraining order — a judicial order to forbid a particular act until a decision is reached on an application for an injunction.
- retarded ignition — late ignition, which may cause the engine to under-perform
- reticulate python — a python, Python reticulatus, of southeastern Asia and the East Indies, sometimes growing to a length of 32 feet (10 meters): usually considered to be the largest snake in the world.
- retrocessionaires — a reinsurance company that accepts or takes a retrocession.
- return of capital — A return of capital is a situation in which you receive back money that was previously invested.