expansion
[ ik-span-shuh n ]
/ ɪkˈspæn ʃən /
noun
Origin of expansion
OTHER WORDS FROM expansion
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Example sentences from the Web for expansion
British Dictionary definitions for expansion
expansion
/ (ɪkˈspænʃən) /
noun
Derived forms of expansion
expansionary, adjectiveMedical definitions for expansion
expansion
[ ĭk-spăn′shən ]
n.
An increase in size.
The spreading out of a structure, such as a tendon.
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.