boom (redirected from boom out)

boom¹

1. the cry of certain animals, esp the bittern

2. Economics a period of high economic growth characterized by rising wages, profits, and prices, full employment, and high levels of investment, trade, and other economic activity

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boom²

1. Nautical a spar to which a sail is fastened to control its position relative to the wind

2. a beam or spar pivoting at the foot of the mast of a derrick, controlling the distance from the mast at which a load is lifted or lowered

3. a pole, usually extensible, carrying an overhead microphone and projected over a film or television set

4. a barrier across a waterway, usually consisting of a chain of connected floating logs, to confine free-floating logs, protect a harbour from attack, etc

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boom [büm]

(communications)

A movable mechanical support, usually in a television or motion picture studio, to suspend a microphone within range of the performers but above the field of view of the camera.

(engineering)

A row of joined floating timbers that extend across a river or enclose an area of water for the purpose of keeping saw logs together.

A temporary floating barrier launched on a body of water to contain material, for example, an oil spill.

A structure consisting of joined floating logs placed in a stream to retard the flow.

(mechanical engineering)

A movable steel arm installed on certain types of cranes or derricks to support hoisting lines that must carry loads.

(naval architecture)

A spar attached to a mast or kingpost of a ship carrying cargo-hoisting gear.

A spar upon which the lower side of a sail is bent.