Noun equation has 3 senses
  1. equation - a mathematical statement that two expressions are equal
    --1 is a kind of
    mathematical statement
    --1 has particulars:
     regression equation, regression of y on x; linear equation; quadratic equation, quadratic; biquadratic equation, biquadratic; differential equation; simultaneous equations; exponential equation
    Derived form: verb equate2
  2. equality, equivalence, equation, par - a state of being essentially equal or equivalent; equally balanced; "on a par with the best"
    --2 is a kind of status, position
    --2 has particulars: tie
    Derived forms: verb equate2, verb equate3
  3. equation, equating - the act of regarding as equal
    --3 is a kind of equalization, equalisation, leveling
    Derived form: verb equate1