Day ring

Circular counter around which ring representatives used to buy and sell contracts by calling out bid and asked quotations. A distinction was drawn between the stock trading ring ...

ring

Financial services; Commodity exchange

A circular area on the trading floor of an exchange where traders and brokers stand while executing futures trades. Some exchanges use pits rather than rings.

ring

Telecommunications; General telecom

In telephony, a signal of specific duration and character that indicates to a user (customer, subscriber) that a calling party is engaged in an access attempt. 2. Synonym ring ...

ring

Meat products; Lamb

A mob of sheep moving around in a circle.

reverse painting

Chronometry; Clock

A picture or design often used on a clock tablet and painted on the back side of a glass in reverse order of a normal painting.

reverse fusee

Chronometry; Clock

The reaction of engagement of the great wheel with its pinion is transmitted to its pivot and, in the usual layout, the pull of the fusee line adds to this load. In the ...

rete

Chronometry; Clock

The rotatable circular star map of an astrolabe, in the form of a network of pierced and engraved metal.

frosting

Chronometry; Clock

The granular or matted finish given to the surface of brass clock parts prior to gilding. It is produced by dipping the parts briefly into a concentrated mixture of nitric and ...

front wind

Chronometry; Clock

A clock that is wound through an opening in the dial.

free pendulum

Chronometry; Clock

It has been known for a long time that a 'free' pendulum clock will achieve perfect timekeeping. A pendulum, to achieve this, would maintain its arc and do no work, without ever ...

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Industry/Domain: Environment Category: Pollution

Oil spill

Oil spill is a form of pollution that refers to the accidental release of liquid petroleum into the environment due to human activity. One common form ...