equation
Concise Oxford English Dictionary © 2008 Oxford University Press:
equation /ɪˈkweɪʒ(ə)n/
▶noun
- 1 the process of equating one thing with another.
- 2 Mathematics a statement that the values of two mathematical expressions are equal (indicated by the sign =).
- 3 Chemistry a symbolic representation of the changes which occur in a chemical reaction, expressed in terms of the formulae of the molecules or other species involved.
– phrases
equation of the first (or second etc.) order Mathematics an equation involving only the first derivative, second derivative, etc.
equation of state Chemistry an equation showing the relationship between the values of the pressure, volume, and temperature of a quantity of a particular substance.
equation of time the difference between mean solar time (as shown by clocks) and apparent time (indicated by sundials), which varies with the time of year.
equation of the first (or second etc.) order Mathematics an equation involving only the first derivative, second derivative, etc.
equation of state Chemistry an equation showing the relationship between the values of the pressure, volume, and temperature of a quantity of a particular substance.
equation of time the difference between mean solar time (as shown by clocks) and apparent time (indicated by sundials), which varies with the time of year.
'equation' also found in these Oxford entries:
cancel
- derive
- differential equation
- Diophantine equation
- eigenfunction
- eigenvalue
- equality
- evaluate
- Fermat's last theorem
- gas constant
- gas equation
- identity
- k
- linear equation
- member
- non-linear
- order
- parity
- partial differential equation
- quadric
- quartic
- root
- satisfy
- Schrödinger equation
- simultaneous equations
- wave equation
- wave function
