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A machine that drives a pile by raising a weight between guideposts and dropping it on the head of the pile.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a machine for driving piles, usu. composed of a tall framework in which either a weight is raised and dropped on a pile head or in which a steam hammer drives the pile.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||pile driver - a machine that drives piling into the ground|
machine - any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks
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