19-letter words containing e, n, t, r, u
- board of trade unit — a unit of electrical energy equal to 1 kilowatt-hour
- bordering countries — countries that share a border with a particular country
- born out of wedlock — born when one's parents are not legally married
- breathing apparatus — an apparatus, usually consisting of tanks of air or oxygen and a mouthpiece, that enables the wearer to breath in difficult conditions such as a smoke-filled building
- brightline spectrum — the spectrum of an incandescent substance appearing on a spectrogram as one or more bright lines against a dark background.
- brimstone butterfly — a common yellow butterfly, Gonepteryx rhamni, of N temperate regions of the Old World: family Pieridae
- bug tracking system — (programming) (BTS) A system for receiving and filing bugs reported against a software project, and tracking those bugs until they are fixed. Most major software projects have their own BTS, the source code of which is often available for use by other projects. Well known BTSs include GNATS, Bugzilla, and Debbugs.
- bulbourethral gland — Cowper's gland
- buster brown collar — a medium-sized, starched collar with rounded edges, lying flat on the shoulders, worn by women and girls.
- canterbury pilgrims — the pilgrims whose stories are told in Chaucer's Canterbury Tales
- capital expenditure — expenditure on acquisitions of or improvements to fixed assets
- captains courageous — a novel (1897) by Rudyard Kipling.
- center of curvature — the center of the circle of curvature.
- centre of curvature — the point on the normal at a given point on a curve on the concave side of the curve whose distance from the point on the curve is equal to the radius of curvature
- centrifugal casting — casting that utilizes centrifugal force within a spinning mold to force the metal against the walls.
- chlorofluoromethane — any of a series of gaseous or volatile methanes substituted with chlorine and fluorine and containing little or no hydrogen: used as refrigerants and, formerly, as aerosol propellants until scientists became concerned about depletion of the atmospheric ozone layer.
- circular definition — a definition in which the definiendum (the expression being defined) or a variant of it appears in the definiens (the expression that defines it).
- circulating decimal — repeating decimal
- circulation manager — the senior manager responsible for the distribution of a newspaper
- clemastine fumarate — an antihistamine, C 25 H 30 ClNO 5 , that has drying and some sedative effects, used for symptomatic relief of allergy.
- columnar epithelium — epithelium consisting of one or more layers of elongated cells of cylindrical or prismatic shape.
- comminuted fracture — a fracture in which the bone is splintered or fragmented
- community programme — (in Britain) a former government scheme to provide temporary work for people unemployed for over a year
- community relations — the particular state of affairs in an area where potentially conflicting ethnic, religious, cultural, political, or linguistic groups live together
- complete quadrangle — a plane figure consisting of four points connected by six lines
- compromise solution — a solution to a problem reached by compromise
- computer dictionary — Free On-line Dictionary of Computing
- computer simulation — an event, process, or scenario that is created on a computer
- computer-controlled — controlled by computers, esp without direct human intervention
- concurrentsmalltalk — (language) A concurrent variant of Smalltalk.
- connecticut warbler — a North American wood warbler, Oporornis agilis, olive-green above with a gray head and throat and yellow below.
- construction worker — a person who works in the construction industry, esp one engaged in manual work
- consultant engineer — an engineer who works as a consultant to a project or company
- consultation period — a period during which consultations are held before a policy decision is made
- consumer protection — laws and policies designed to protect consumers against unfair trade and credit practices
- consumer resistance — the unwillingness of consumers to adopt a particular product, service, or change
- contemporaneousness — The state or characteristic of being contemporaneous.
- continuous creation — the theory that matter is being created continuously in the universe
- 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
- contour integration — integration in the complex plane about a closed curve of finite length.
- contra-guide rudder — a rudder having a horizontal offset of its upper and lower halves to improve the flow characteristics of the propeller race.
- 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.
- contradistinguished — Simple past tense and past participle of contradistinguish.
- contradistinguishes — Third-person singular simple present indicative form of contradistinguish.
- convergent boundary — a major geologic discontinuity or suture marking the juncture of lithospheric plates that have been joined by plate tectonics.
- convergent sequence — fundamental sequence.
- convergent-sequence — an infinite sequence, x 1 , x 2 , …, whose terms are points in Ek, in which there exists a point y such that the limit as n goes to infinity of xn = y if and only if for every ε>0, there exists a number N such that i > N and j > N implies | xi − xj |< ε. Also called Cauchy sequence, convergent sequence. Compare complete (def 10b).
- 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.
- coordination number — the number of coordinated species surrounding the central atom in a complex or crystal
- corporal punishment — Corporal punishment is the punishment of people by hitting them.