-tron, -tronic, -tronics +
(Greek: a suffix referring to a device, tool, or instrument; more generally, used in the names of any kind of chamber or apparatus used in experiments)
A possible allusion to the Greek instrumental suffix, as in árotron, "plow" as spelled in the U.S. or "plough", as spelled by the British; from the Greek stem aroun, "to plow".
The suffix -tron is the result of the combining form extracted from electron, used with nouns or combining forms, principally in the names of electron tubes (ignitron; klystron; magnetron) and of devices for accelerating subatomic particles (cosmotron; cyclotron); also, more generally, in the names of any kind of chamber or apparatus used in experiments (biotron).
2. A ratio of the average current density at any specified opening through which the electron stream passes to the average current density at the cathode surface.
2. A process by which a molecule is excited from a low-lying electronic state to a higher energy electronic state as observed in germanium and silicon at sufficiently low cryogenic temperatures.
It is associated with a liquid-gas phase transition of the charge carriers, and consists of regions of conducting electron-hole Fermi liquid coexisting with regions of insulating exciton gas.
2. A reference to that branch of science and engineering which deal with the motion, emission, and behavior of currents of free electrons; especially, in vacuum, gas, or phototubes, and special conductors or semiconductors.
This is contrasted with electric, which refers to the flow of large currents in metal conductors.3. A reference to devices, circuits, or systems using the principle of electron flow through a conductor; for example, electronic control, electronic equipment, electronic instrument, and electronic circuit.
4. Using, or accessed through a computer or computer network; for example, internet electronic banking.
The term electronic is used to refer to equipment, such as television sets, computers, etc., in which the current is controlled by transistors, valves, and similar components and also to the components themselves.
2. A device that measures voltage in amplifier-rectifier circuits.
The most common type is an aneroid barometer calibrated to show the drop in atmospheric pressure in terms of linear elevation as an airplane, balloon, or mountain climber rises.
It shows height above sea level, but not above such land features as hills, mountains, and valleys.
The radio altimeter, or terrain-clearance indicator, is an absolute altimeter which indicates the actual altitude over water or over terrain, regardless of how uneven it is.
It functions by first sending either continuous or pulse radio signals from a transmitter in an aircraft to the earth's surface.
2. The total angular momentum associated with the orbital motion of the spins of all the electrons of an atom.
When someone passes a gate, or door, of a place holding an item with an electronic article surveillance that hasn't been turned off, an alarm sounds.
The term omnirange refers to a radio aid to navigation which provides a direct indication of the magnetic bearing (omnibearing) of that station from any direction.
2. On an airborne radar plan position indicator (PPI) a bright rotatable radial line used for determining the bearing of an aircraft.
2. A weighing balance which uses forces produced by known currents to balance unknown currents and, so make unknown weights come to within parts of a microgram.
2. Bands of spectral lines connected with a change of electronic state of a molecule.
Each band is corresponding to vibrational energies in the initial and final conditions and each band consists of numerous rotational lines.
2. A reference to a marine radar set, the bright rotatable radial line on the plan position indicator that is used for the determination of bearing or the calculation of a direction or a geographic position.