expansion
[ ik-span-shuhn ]
/ ɪkˈspæn ʃən /
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noun
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Origin of expansion
OTHER WORDS FROM expansion
Words nearby expansion
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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British Dictionary definitions for expansion
expansion
/ (ɪkˈspænʃən) /
noun
Derived forms of expansion
expansionary, adjectiveCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for expansion
expansion
[ ĭk-spăn′shən ]
n.
An increase in size.
The spreading out of a structure, such as a tendon.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for expansion
expansion
[ ĭk-spăn′shən ]
An increase in the volume of a substance while its mass remains the same. Expansion is usually due to heating. When substances are heated, the molecular bonds between their particles are weakened, and the particles move faster, causing the substance to expand.
A number or other mathematical expression written in an extended form. For example, a2 + 2ab + b2 is the expansion of (a + b)2.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.