a mathematical statement that two expressions are equal: it is either an identity in which the variables can assume any value, or a conditional equation in which the variables have only certain values (roots) the act of regarding as equal; equating the state of being equal, equivalent, or equally balanced a situation or problem in which a number of factors need to be considered - See chemical equation
WordReference Random House Learner's Dictionary of American English © 2026
e•qua•tion /ɪˈkweɪʒən/USA pronunciation
n.
WordReference Random House Unabridged Dictionary of American English © 2026- Mathematics[countable] an expression or a proposition in mathematics or logic, stating that two quantities are equal.
e•qua•tion
(i kwā′zhən, -shən),USA pronunciation n.
- the act of equating or making equal;
equalization:the symbolic equation of darkness with death. - equally balanced state;
equilibrium. - Mathematicsan expression or a proposition, often algebraic, asserting the equality of two quantities.
- Chemistrya symbolic representation showing the kind and amount of the starting materials and products of a reaction.
- Latin aequātiōn- (stem of aequātiō) an equalizing. See equate, -ion
- Middle English 1350–1400
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'line equation' also found in these entries (note: many are not synonyms or translations):