GC: n

CT: Capacitor is an electronic component that stores electric charge. The capacitor is made of 2 close conductors (usually plates) that are separated by a dielectric material. The plates accumulate electric charge when connected to a power source. One plate accumulates positive charge and the other plate accumulates negative charge.
The capacitance is the amount of electric charge that is stored in the capacitor at voltage of 1 Volt.
The capacitance is measured in units of Farad (F).
The capacitor disconnects the current in direct current (DC) circuits and short circuits in alternating current (AC) circuits.

S: (last access: 18th December 2014)

N: 1. “device which stores electricity,” 1926, from capacity (early 15c., from Middle French capacité “ability to hold” (15c.), from Latin capacitatem (nominative capacitas) “breadth, capacity, capability of holding much,” noun of state from capax (genitive capacis) “able to hold much,” from capere “to take”) with Latinate agent-noun ending.
2. A commonly used component which stores electrical energy.
3. It is sometimes referred to as a condensor.
4. condenser: deprecated in electrical and electronic usages, but still in use in the field of automotive ignition systems.
5. CAP.: abbreviation for “capacitor” and “capacitance” (the use of the period is recommended to differentiate this abbreviation from the English word “cap”); C: reference designation for “capacitor”, usually followed by a number. Such reference designations are used in circuit diagrams to identify the various components, and may also be used in mathematical formulas when circuit parameters are calculated.

S: 1. OED – (last access: 18 December 2014). 2 & 3. GDT –;”>; (last access: 18 December 2014). 4 & 5. TERMIUMPLUS (last access: 22 February 2015).

SYN: electrical capacitor


CR: [condensation]