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subassembly

[suhb-uh-sem-blee]
noun, plural sub·as·sem·blies.
  1. a structural assembly, as of electronic or machine parts, forming part of a larger assembly.
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Origin of subassembly

First recorded in 1925–30; sub- + assembly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for subassembly

subassembly

noun plural -blies
  1. a number of machine components integrated into a unit forming part of a larger assembly
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012