19-letter words containing lect
- angle of reflection — the angle that a beam of reflected radiation makes with the normal to a surface at the point of reflection
- collect on delivery — payment in cash when a purchase or shipment is delivered
- collective behavior — the spontaneous, unstructured, and temporary behavior of a group of people in response to the same event, situation, etc.
- collective security — a system of maintaining world peace and security by concerted action on the part of the nations of the world
- collector electrode — See under Klystron.
- 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.
- 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.
- electric typewriter — typewriting machine: uses electricity
- electrical engineer — An electrical engineer is a person who uses scientific knowledge to design, construct, and maintain electrical devices.
- electro-shock baton — a baton used as a weapon to pass an electric current through part of the body
- electrocardiographs — Plural form of electrocardiograph.
- electrocardiography — The measurement of electrical activity in the heart and the recording of such activity as a visual trace (on paper or on an oscilloscope screen), using electrodes placed on the skin of the limbs and chest.
- electroconductivity — Electrical conductivity.
- electrode potential — the potential difference developed when an electrode of an element is placed in a solution containing ions of that element
- electrodynamometers — Plural form of electrodynamometer.
- electrohydrodynamic — (physics) Of or pertaining to electrohydrodynamics.
- electroluminescence — Luminescence produced electrically, especially in a phosphor by the application of a voltage.
- electromagnetically — By means of electromagnetism.
- electromechanically — In an electromechanical way.
- electromotive force — a source of energy that can cause a current to flow in an electrical circuit or device
- electron micrograph — a photograph or image of a specimen taken using an electron microscope
- electron microscope — An electron microscope is a type of very powerful microscope that uses electrons instead of light to produce a magnified image of something.
- electron multiplier — a device for amplifying and measuring a flux of electrons. Each electron hits an anode surface and releases secondary electrons that are accelerated to a second surface; after several such stages a measurable pulse of current is obtained
- electronegativities — Plural form of electronegativity.
- electronic commerce — (application, communications) (EC) The conducting of business communication and transactions over networks and through computers. As most restrictively defined, electronic commerce is the buying and selling of goods and services, and the transfer of funds, through digital communications. However EC also includes all inter-company and intra-company functions (such as marketing, finance, manufacturing, selling, and negotiation) that enable commerce and use electronic mail, EDI, file transfer, fax, video conferencing, workflow, or interaction with a remote computer. Electronic commerce also includes buying and selling over the web and the Internet, electronic funds transfer, smart cards, digital cash (e.g. Mondex), and all other ways of doing business over digital networks.
- electronic engineer — a person who is qualified or expert in electronic engineering
- electronic graphics — (on television) the production of graphic designs and text by electronic means
- electronic ignition — any system that uses an electronic circuit to supply the voltage to the sparking plugs of an internal-combustion engine
- electronic keyboard — a typewriter keyboard used to operate an electronic device such as a computer, word processor, etc
- electronic magazine — (messaging, publication, web) (e-zine) A regular publication on some particular topic distributed in digital form, chiefly now via the web but also by electronic mail or floppy disk. E-zines are often distributed for free by enthusiasts.
- electropalatography — the study of the movements of the tongue during speech using touch-sensitive electrodes in the mouth linked to a computer
- electrophoretically — By means of electrophoresis.
- electrophotographic — Of or pertaining to electrophotography.
- electrophysiologist — A physiologist whose speciality is electrophysiology.
- electrostatic field — an electric field associated with static electric charges
- electrostatic units — the system of CGS electric and magnetic units that assigns the value of one to the dielectric constant of a vacuum
- electrotherapeutics — (medicine) the use of electricity in therapeutics.
- gel electrophoresis — a technique for separating protein molecules of varying sizes in a mixture by moving them through a block of gel, as of agarose or polyacrylamide, by means of an electric field, with smaller molecules moving faster and therefore farther than larger ones.
- hydroelectric power — electricity generated by water
- intellectualization — to seek or consider the rational content or form of.
- microelectronically — by microcircuits
- photoelectric meter — an exposure meter using a photocell for the measurement of light intensity.
- point of inflection — inflection point.
- pseudo-intellectual — a person exhibiting intellectual pretensions that have no basis in sound scholarship.
- public intellectual — an intellectual, often a noted specialist in a particular field, who has become well-known to the general public for a willingness to comment on current affairs
- quantum electronics — the application of quantum mechanics and quantum optics to the study and design of electronic devices
- reference electrode — an electrode of known oxidation potential used in determining the electromotive force of a galvanic cell.
- selection committee — panel who appoint sb to a post
- selective attention — mental focus on sth in particular
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