electro-, electr-, electri-

A complex electronic computer, usually of the digital type.

A type of monitor which is used to check a person's blood alcohol level as he or she blows through the mouthpiece of the meter.

The breath meter automatically measures the amount of alcohol which is present in one's body as the display signals whether the blood alcohol level is at or near the legal limit for driving.

A computerized communication system that allows users to compose and store information to be retrieved by other users of the system.

A card-handling device that reads a hole in a card: An electronic calculating-punch machine performs a number of sequential operations, as well as indicating the results on the card.

1. A device in which transistors perform mathematical calculations and utilize light-emitting diodes or liquid crystals to display the results.
2. A small, often pocket-sized, electronic instrument used to perform the basic operations of mathematical calculations.
3. An electronic tool for arithmetic and logarithmic computations which may also include a digital printer and a computer.
4. A calculator in which integrated circuits perform calculations and show the results on a digital display.

Most basic models provide all four arithmetic operations (+, -, x, ÷), usually with a floating decimal.



1. The use of electronic properties to minimize or to negate the presence of echoes in a radar system.
2. The use of electronic means, or exploitations of electronic characteristics to reduce, to submerge, or to eliminate the radar echoing properties of a target.

A fuel-metering actuator in which the air/fuel ratio is controlled by continual variations of the metering rod position in response to an electronic control signal.

A carillon which uses electric and electronic circuits to generate, to amplify, and to reproduce musical tones approximating those of bells.

A carillon is a musical instrument which is usually housed in a free-standing bell tower, or the belfry of a church, or other municipal building.

1. A register with a component which scans the symbols on a package label, then converts them to a digital format in order to indicate the item price and, in some situations, maintain a record of sales and inventories as utilized in retail stores.
2. A system for automatically checking out purchased goods from retail food stores, consisting of a device that scans packages and reads symbols imprinted on the labels, and a computer which converts the symbol information to tell a cash register the price of the item.

The computers are also equipped to keep records of sales and inventories.

The quantity of charge represented or possessed by one electron.

1. An input device which can scan curves from a continuous paper feed and convert them to digital data.
2. An instrument that scans curves by a graphical recorder on a continuous paper form and converts them into digital form.

A navigational chart encoded in a computer-usable format and used, in combination with electronic devices, to produce a computer-generated video display that provides the navigator with an accurate pictorial presentation of the information normally gathered from a paper chart.

A set of tubular chimes actuated by strikers electromagnetically controlled from a keyboard.

The resulting sounds are picked up, amplified, and reproduced by loudspeakers.

In the U.S., religious television programs of a church or evangelistic service designed for mass audiences, usually conducted by preachers of great personal appeal.

Cinematography using an electronic video camera to create a videotape that can be viewed on a monitor, edited electronically, and transferred to film for motion-picture projectors.