19-letter words containing tr
- chemical castration — the use of drugs to reduce libido
- chemolithoautotroph — (biology) A chemoautotroph or lithoautotroph.
- chinese finger trap — a child's toy, consisting of a small cylinder of woven straw or paper into which the forefingers are placed, one in each end: the harder one pulls, the more securely the fingers are held.
- chinese tallow tree — tallow tree.
- chrestien de troyes — c1140–c90, French poet.
- clandestine entrant — a person who hides in or on a vehicle as it enters the United Kingdom with the aim of avoiding immigration controls
- collector electrode — See under Klystron.
- command and control — authority exercised by a commander or a military force
- commercial traveler — a traveling salesman
- comptroller general — the director of the General Accounting Office
- computer-controlled — controlled by computers, esp without direct human intervention
- conscience-stricken — feeling anxious or guilty
- construction worker — a person who works in the construction industry, esp one engaged in manual work
- container transport — the transport of cargo in containers
- continuous spectrum — a spectrum that contains or appears to contain all wavelengths but not spectrum lines over a wide portion of its range. The emission spectrum of incandescent solids is continuous; bremsstrahlung spectra consisting of a large number of lines may appear continuous
- contra-guide rudder — a rudder having a horizontal offset of its upper and lower halves to improve the flow characteristics of the propeller race.
- contract programmer — (job, programming) A programmer who works on a fixed-length or temporary contract, and is often employed to write certain types of code or to work on a specific project. Despite the fact that contractors usually cost more than hiring a permanent employee with the same skills, it is common for organisations to employ them for extended periods, sometimes renewing their contracts for many years, due to lack of certainty about the future or simple lack of planning. A contract programmer may be independent or they may work in a supplier's professional services department, providing consultancy and programming services for the supplier's products.
- contractile vacuole — a membrane-enveloped cellular organelle, found in many microorganisms, that periodically expands, filling with water, and then contracts, expelling its contents to the cell exterior: thought to be important in maintaining hydrostatic equilibrium.
- contradistinctively — In contradistinction.
- contradistinguished — Simple past tense and past participle of contradistinguish.
- contradistinguishes — Third-person singular simple present indicative form of contradistinguish.
- contributing factor — something that is partly responsible for a development or phenomenon
- cooccurrence matrix — (mathematics) Given a position operator P(i,j), let A be a nxn matrix whose element A[i][j] is the number of times that points with grey level (intensity) g[i] occur, in the position specified by P, relative to points with grey level g[j]. Let C be the nxn matrix that is produced by dividing A with the total number of point pairs that satisfy P. C[i][j] is a measure of the joint probability that a pair of points satisfying P will have values g[i], g[j]. C is called a cooccurrence matrix defined by P. Examples for the operator P are: "i above j", "i one position to the right and two below j", etc.
- coordinate geometry — analytic geometry.
- counterdemonstrator — Someone who demonstrates in opposition to another demonstration that is happening nearby at the same time.
- countertransference — in psychotherapy, transference in which the psychoanalyst or other psychotherapist substitutes the client for the original object of his or her own repressed impulses
- country and western — Country and western is the same as country music.
- country-and-western — country music.
- crinoline stretcher — (on a Windsor chair) a stretcher having an inwardly curved piece connecting the front legs, and connected to the back legs by short, straight pieces.
- current transformer — A current transformer is a transformer that is designed to give an accurate current ratio for the purpose of measurement and control.
- curvilinear tracery — tracery, especially of the 14th and 15th centuries, characterized by a pattern of irregular, boldly curved forms.
- datatron 200 series — (computer) A family of computers produced by Burroughs that included the Datatron 204 and Datatron 220.
- deacetyltransferase — (enzyme) Any of a class of enzymes that remove acetyl groups, especially from a lysine residue of a histone.
- deindustrialisation — Alternative spelling of deindustrialization.
- deindustrialization — the decline in importance of manufacturing industry in the economy of a nation or area
- demonstration model — a nearly new product, such as a car or washing machine, that has been used only to demonstrate its performance by a dealer and is offered for sale at a discount
- dielectric constant — Electricity. the ratio of the flux density produced by an electric field in a given dielectric to the flux density produced by that field in a vacuum.
- dielectric strength — the maximum voltage that can be applied to a given material without causing it to break down, usually expressed in volts or kilovolts per unit of thickness.
- diethylstilboestrol — Diethylstilbestrol.
- digital electronics — (electronics) The implementation of two-valued logic using electronic logic gates such as and gates, or gates and flip-flops. In such circuits the logical values true and false are represented by two different voltages, e.g. 0V for false and +5V for true. Similarly, numbers are normally represented in binary using two different voltages to represented zero and one. Digital electronics contrasts with analogue electronics which represents continuously varying quantities like sound pressure using continuously varying voltages. Digital electronics is the foundation of modern computers and digital communications. Massively complex digital logic circuits with millions of gates can now be built onto a single integrated circuit such as a microprocessor and these circuits can perform millions of operations per second.
- dihydrostreptomycin — an antibiotic, C 21 H 41 N 7 O 12 , derived by organic synthesis from and believed to be less toxic than streptomycin: used in the form of its sulfate chiefly in the treatment of tuberculosis.
- dimethylnitrosamine — a yellow, water-soluble carcinogenic liquid, C 2 H 6 N 2 O, found in tobacco smoke and certain foods: known to be a potent carcinogen. Abbreviation: DMN, DMNA.
- dimetric projection — a type of axonometric projection in which the object is shown with two of its three principal axes tilted equally from the plane of viewing
- discretionary trust — a trust in which the beneficiaries' shares are not fixed in the trust deed but are left to the discretion of other persons, often the trustees
- distributed systems — distributed system
- distribution system — The distribution system is the part of an electric system after the transmission system that is dedicated to delivering electric energy to an end user.
- doctrine of descent — the theory that animals and plants arose by descent from previously existing organisms; theory of evolution
- dynamic translation — (architecture) A virtual machine implementation approach, used to speed up execution of byte-code programs. To execute a program unit such as a method or a function, the virtual machine compiles its bytecodes into (hardware) machine code. The translated code is also placed in a cache, so that next time that unit's machine code can be executed immediately, without repeating the translation. This technique was pioneered by the commercial Smalltalk implementation currently known as VisualWorks, in the early 1980s. Currently it is also used by some implementations of the Java Virtual Machine under the name JIT (Just In Time compilation).
- dynatron oscillator — type of oscillator
- electric typewriter — typewriting machine: uses electricity