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A mount for a traveling crane consisting of a large archlike or bridgelike frame designed to move along a set of tracks.
(noun)
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A similar spanning frame supporting a group of railway signals over several tracks.
(noun)
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Aerospace A massive vertical frame structure used in assembling or servicing a rocket, especially at a launch site.
(noun)
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A support for a barrel lying on its side.
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.