boomer

boomer

Austral a large male kangaroo

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boomer [′büm·ər]

(engineering)

A device used to tighten chains on pipe or other equipment loaded on a truck to make the cargo secure.

(mining engineering)

In placer mining, an automatic gate in a dam that holds the water until the reservoir is filled, then opens automatically and allows the escape of such a volume that the soil and upper gravel of the placer are washed away.