equation
noun
equa·tion
| \ i-ˈkwā-zhən also -shən
\
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Definition of equation
1a
: the act or process of equating
b(1)
: an element affecting a process : factor
(2)
: a complex of variable factors
c
: a state of being equated
specifically
: a state of close association or identification
bring governmental enterprises and payment for them into immediate equation — R. G. Tugwell
2a
: a usually formal statement of the equality or equivalence of mathematical or logical expressions
b
: an expression representing a chemical reaction quantitatively by means of chemical symbols