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19-letter words containing c, o, n, l, u

  • population genetics — the branch of genetics concerned with the hereditary makeup of populations.
  • preproduction model — a prototype of a product before the product goes into full-scale production
  • preproduction trial — a trial to test a prototype of a product before the product goes into full-scale production
  • priority scheduling — (operating system)   Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin. Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible. A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.
  • procedural language — (language)   Any programming language in which the programmer specifies an explicit sequences of steps to follow to produce a result (an algorithm). The term should not be confused with "imperative language" - a language that specifies explicit manipulation of state. An example (non-imperative) procedural language is LOGO, which specifies sequences of steps to perform but does not have an internal state. Other procedural languages include Basic, Pascal, C, and Modula-2. Both procedural and imperative languages are in contrast to declarative languages, in which the programmer specifies neither explicit steps nor explicit state manipulation.
  • production platform — offshore power station
  • pseudo-intellectual — a person exhibiting intellectual pretensions that have no basis in sound scholarship.
  • public-opinion poll — a poll taken by sampling a cross section of the public in an effort to predict election results or to estimate public attitudes on issues.
  • pull one's socks up — to make a determined effort, esp in order to regain control of a situation
  • quantum electronics — the application of quantum mechanics and quantum optics to the study and design of electronic devices
  • rap on the knuckles — a mild reprimand or light sentence
  • reconceptualization — to form into a concept; make a concept of.
  • recurrence relation — (mathematics)   An equation that defines each element of a sequence in terms of one or more earlier elements. E.g. The Fibonacci sequence, X[1] = 1 X[2] = 1 X[n] = X[n-1] + X[n-2] Some recurrence relations can be converted to "closed form" where X[n] is defined purely in terms of n, without reference to earlier elements.
  • reduction potential — (in a galvanic cell) the potential of the electrode at which reduction occurs.
  • regular icosahedron — an icosahedron in which each of the faces is an equilateral triangle
  • relational calculus — (database)   An operational methodolgy, founded on predicate calculus, dealing with descripitive expressions that are equivalent to the operations of relational algebra. Codd's reduction algorithm can convert from relational calculus to relational algebra. Two forms of the relational calculus exist: the tuple calculus and the domain calculus.
  • religious education — religion as school subject
  • republic of ireland — John, 1838–1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888–1918.
  • republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
  • reticular formation — a network of neurons in the brainstem involved in consciousness, regulation of breathing, the transmission of sensory stimuli to higher brain centers, and the constantly shifting muscular activity that supports the body against gravity.
  • reticuloendothelial — pertaining to, resembling, or involving cells of the reticuloendothelial system.
  • rhetorical question — a question asked solely to produce an effect or to make an assertion and not to elicit a reply, as “What is so rare as a day in June?”.
  • right circular cone — a cone whose surface is generated by lines joining a fixed point to the points of a circle, the fixed point lying on a perpendicular through the center of the circle.
  • ruffini's corpuscle — an end organ of certain sensory neurons that branches out parallel to the skin and responds to steady pressure.
  • run-length encoding — A kind of compression algorithm which replaces sequences ("runs") of consecutive repeated characters (or other units of data) with a single character and the length of the run. This can either be applied to all input characters, including runs of length one, or a special character can be used to introduce a run-length encoded group. The longer and more frequent the runs are, the greater the compression that will be achieved. This technique is particularly useful for encoding black and white images where the data units would be single bit pixels.
  • scale down (or up) — to reduce (or increase), often according to a fixed ratio or proportion
  • screen actors guild — a labor union for motion-picture performers, founded in 1933. Abbreviation: SAG.
  • secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
  • self-congratulating — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
  • self-congratulation — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
  • self-congratulatory — the expression or feeling of uncritical satisfaction with oneself or one's own accomplishment, good fortune, etc.; complacency.
  • self-reconstruction — an act of reconstructing.
  • semibituminous coal — a coal intermediate between bituminous and anthracite coal in hardness, yielding the maximum heat of any ordinary steam coal.
  • semiconductor laser — a laser in which a semiconductor is the light-emitting source, used in many medical procedures.
  • senatorial courtesy — the practice in the U.S. Senate of confirming only those presidential appointees approved by both senators from the state of the appointee, or by the senior senator of the president's party.
  • sentential function — an expression that contains one or more variables and becomes meaningful when suitable constant terms are substituted for them.
  • sexual inter-course — genital contact, especially the insertion of the penis into the vagina followed by orgasm; coitus; copulation.
  • sexual reproduction — reproduction involving the union of gametes.
  • slate-colored junco — the eastern subspecies of the dark-eyed junco, Junco hyemalis, having grayer plumage than the several western subspecies.
  • southern crab apple — a tree, Malus angustifolia, of the eastern U.S., having oblong leaves, fragrant, pink or rose-colored flowers, and small, round, yellow-green fruit.
  • specular reflection — Specular reflection is reflection of heat or light in which the angles of different parts of the surface are important.
  • speculative fiction — a broad literary genre encompassing any fiction with supernatural, fantastical, or futuristic elements
  • sphere of influence — any area in which one nation wields dominant power over another or others.
  • sulphonium compound — any one of a class of salts derived by the addition of a proton to the sulphur atom of a thiol or thio-ether thus producing a positive ion (sulphonium ion)
  • the channel country — an area of E central Australia, in SW Queensland: crossed by intermittent rivers and subject to both flooding and long periods of drought
  • the compassion club — (in Canada) a nonprofit organization that provides uncontaminated cannabis for medical purposes and natural therapies in a safe environment
  • the vatican council — the second Ecumenical Council of the Vatican, also known as Vatican II, which sat from 1962 to 1965, and among other things allowed the liturgy to be said in the local language, not Latin
  • therapeutic cloning — the permitted creation of cloned human tissues for surgical transplant
  • to lick your wounds — If you say that someone is licking their wounds, you mean that they are recovering after being defeated or made to feel ashamed or unhappy.
  • to the exclusion of — If you do one thing to the exclusion of something else, you only do the first thing and do not do the second thing at all.
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