20-letter words containing o, i, l, t
- property speculation — the buying or selling of property in the hope of deriving capital gains
- proportional counter — a radiation counter in which the strength of each electric pulse generated per count is proportional to the energy of the particle or photon producing the pulse, alpha particles producing a different electric pulse from beta rays.
- proportional spacing — a feature of some typewriters and other output devices whereby the space allotted to each character is determined by the width of the character
- psychiatric hospital — institution treating mental disorders
- psychological moment — the proper or critical time for achieving a desired result: She found the right psychological moment to make her request.
- psychomotor epilepsy — temporal-lobe epilepsy.
- public administrator — an official of a city, county, or state government.
- punch a (time) clock — to insert a timecard into a time clock when coming to or going from work
- quantum field theory — any theory in which fields are treated by the methods of quantum mechanics; each field can then be regarded as consisting of particles of a particular kind, which may be created and annihilated.
- quasi-constitutional — of or relating to the constitution of a state, organization, etc.
- quasi-stellar object — quasar. Abbreviation: QSO.
- radial triangulation — triangulation based upon lines radiating from the center of each of two overlapping photographs to certain objects appearing on each photograph.
- raise one's glass to — to drink the health of; drink a toast to
- read-eval-print loop — (language, LISP, programming) (REPL) A programming structure within LISP which repeatedly reads a form from the user, evaluates it, and displays the result. A read-eval-print loop forms the basis of the Top-Level shell that programmers of the LISP family of languages interact with. In many dialects of LISP a very simple REPL could be implemented as: (loop (print (eval (read)))). (2003-06-23)
- real-time processing — data-processing by a computer which receives constantly changing data, such as information relating to air-traffic control, travel booking systems, etc, and processes it sufficiently rapidly to be able to control the source of the data
- receivables turnover — A receivables turnover is a measure of cash flow that is calculated by dividing net credit sales by average accounts receivable.
- reconcile an account — If you reconcile an account, you compare the items in a bank statement, credit card statement, or vendor statement with the entries on your books and make sure that the statement and books match.
- recreational therapy — therapy by means of recreational activities engaged in by the patient
- recreational vehicle — a van or utility vehicle used for recreational purposes, as camping, and often equipped with living facilities. Abbreviation: RV.
- reflecting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
- refracting telescope — an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end of a tube that slides into the first and through which the enlarged object is viewed directly; the other form (reflecting telescope) has a concave mirror that gathers light from the object and focuses it into an adjustable eyepiece or combination of lenses through which the reflection of the object is enlarged and viewed. Compare radio telescope.
- refuse disposal unit — a unit or part of a sink that disposes of waste food, etc, by grinding
- regenerative cooling — Physics. a method of cooling a gas, utilizing the rapid expansion of a compressed portion of the gas, before it becomes liquid, to cool the remainder.
- regional development — aid-giving to poorer areas or countries
- relative atomic mass — the ratio of the average mass per atom of the naturally occurring form of an element to one-twelfth the mass of an atom of carbon-12
- relative conjunction — a conjunction that introduces a relative clause
- relative deprivation — the perception of an unfair disparity between one's situation and that of others.
- relative probability — a measure or estimate of the degree of confidence one may have in the occurrence of an event, defined as the limit of the proportion observed in a sample as the sample size tends to infinity
- ring of the nibelung — Richard Wagner's tetralogy of music dramas: Das Rheingold (completed 1869), Die Walküre (completed 1870), Siegfried (completed 1876), and Götterdämmerung (completed 1876): the cycle was first performed at Bayreuth, 1876.
- ring wall foundation — A ring wall foundation is a base made of concrete, used to put large tanks on.
- roller-blind shutter — curtain shutter.
- romantic involvement — the condition of being in a romantic or sexual relationship
- royal air force list — an official list of all serving commissioned officers of the RAF and reserve officers liable for recall
- royal british legion — an organization founded in 1921 to provide services and assistance for former members of the armed forces
- royal leamington spa — a city in Warwickshire, central England: health resort.
- ruby-crowned kinglet — an olive-gray, American kinglet, Regulus calendula, the male of which has an erectile, ruby crest.
- sailor's breastplate — a knot consisting of three overlapping loops formed by a single rope passed alternately over and under itself at crossings.
- saint john ambulance — an organization that provides first aid and first-aid training
- satellite chromosome — a type of densely staining chromosome of uncertain biological function, found in many plant and animal species.
- satellite navigation — navigation using data received from satellites
- satellite photograph — a photograph taken by an artificial satellite from space
- satellite television — television transmitted from an artificial satellite at a power suitable for direct reception in the home
- schizoid personality — sb with identity disorder
- school without walls — a nontraditional educational program that uses community facilities as learning resources.
- scientific socialism — Marxist socialism
- scottish nationalism — a political ideology advocating the independence of Scotland
- season ticket holder — a person who has a season ticket
- second international — an international association formed in 1889 in Paris, uniting socialistic groups or parties of various countries and holding international congresses from time to time: in 1923 it joined with the Vienna International to form the Labor and Socialist International. Compare international (def 6).
- second law of motion — any of three laws of classical mechanics, either the law that a body remains at rest or in motion with a constant velocity unless an external force acts on the body (first law of motion) the law that the sum of the forces acting on a body is equal to the product of the mass of the body and the acceleration produced by the forces, with motion in the direction of the resultant of the forces (second law of motion) or the law that for every force acting on a body, the body exerts a force having equal magnitude and the opposite direction along the same line of action as the original force (third law of motion or law of action and reaction)
- second-class citizen — a citizen, especially a member of a minority group, who is denied the social, political, and economic benefits of citizenship.