Definition of equation in English:

equation

noun

  • 1Mathematics
    A statement that the values of two mathematical expressions are equal (indicated by the sign =)

    • ‘The sections on equations cover quadratic equations where he discusses two solutions.’
    • ‘It also contains continued fractions, quadratic equations, sums of power series and a table of sines.’
    • ‘Lagrange's main object was to find out why cubic and quartic equations could be solved algebraically.’
    • ‘He replaced the differential operator d/dx by a variable p transforming a differential equation into an algebraic equation.’
    • ‘These laws are very precise and can be expressed by exact mathematical equations.’
    • ‘An encryption algorithm is a mathematical equation containing the message being encrypted or decrypted.’
    • ‘The first person known to have solved cubic equations algebraically was del Ferro but he told nobody of his achievement.’
    • ‘When I pressed him to write an equation expressing the value for a, he insisted that he would need a symbol for within.’
    • ‘The movement associated with each mode can be expressed by the motion equation for a single degree-of-freedom system.’
    • ‘Now express the pattern as a mathematical equation.’
    mathematical problem, sum, calculation, question
    View synonyms
  • 2The process of equating one thing with another.

    ‘the equation of science with objectivity’
    • ‘I feel that I have developed some sort of equation with them.’
    • ‘I say two, because another managerial solution to this quandary is to work on the slightly simpler equation of four into three.’
    • ‘The simple equation of balancing caloric intake and exercise is the key to fitness.’
    • ‘As relationships go, I realized this simple equation of life.’
    • ‘One-half of the general problem of stellar atmospheres revolves around the solution of the equation of radiative transfer.’
    • ‘And can you tell us, are you concerned about second-guessing on that whole equation?’
    • ‘The facts reduce themselves to a terrible equation of time and consequence.’
    equating, equalization, identification, association, connection, likening, matching
    View synonyms
    1. 2.1A situation or problem in which several factors must be taken into account.
      ‘money also came into the equation’
      • ‘Concern for life just does not belong in the profit/loss equation.’
      • ‘And the small matter of lost tax revenue doesn't enter into the equation at all, of course.’
      • ‘Food/energy balance is the simple equation of calories in/calories out.’
      • ‘Another factor in the equation: Used equipment must compete with new equipment in the marketplace.’
      • ‘This deprivation of culture, of identity, is the missing link in Africa's development equation.’
      • ‘So the children issue doesn't really enter into the equation.’
      • ‘Even on stark issues like abortion, there can be no simple equation between the church and any political program or party.’
      • ‘It doesn't enter into the equation, because it's not part of the culture.’
      • ‘In these and other ways, care theorists distance themselves from any simple equation of subjective hurt and moral claims.’
      • ‘When pressure of competition was factored into the equation, the situation changed.’
      • ‘We have explained the process of the enabling development equation.’
      • ‘Once all that is figured out, the most confusing factor in the equation must be pondered: playing time.’
      • ‘It was a simple and compelling equation: the bigger the wave the better your bottom-line.’
      • ‘The second part of that equation seems to have been abandoned by feminists early on.’
      • ‘The fact that he might have to do without doesn't enter into the equation for some in the animal protection industry.’
      • ‘The current price of oil, states the release, is a critical ingredient in the tourism industry and must be factored into the equation.’
      • ‘Yet rising U.S. interest rates and a still-strong dollar must be factored into that equation.’
      • ‘So let me analyse the business element of that equation.’
      • ‘The perception of our success up to this point will be a critical part of that equation.’
      • ‘Even the simplest of pots was a chore and ‘position’ did not even enter into the equation.’
  • 3Chemistry
    A symbolic representation of the changes that occur in a chemical reaction, expressed in terms of the formulae of the molecules or other species involved.

    • ‘When hydrolysis occurs, we will write a chemical equation to describe it, and new species will be formed in solution.’
    • ‘The isotopic data do not conform to a simple mixing equation.’
    • ‘I asked as I balanced a chemical equation and answered some questions.’
    • ‘The final system is the aerobic system. aerobic meaning it requires oxygen as part of its chemical equation to function.’
    • ‘The chemical equations for some reactions may have a lone reactant or a single product.’

Origin

Late Middle English: from Latin aequatio(n-), from aequare make equal (see equate).

Pronunciation:

equation

/əˈkwāZHən/