lambda

/ˈlæmdə/
noun
  1. The 11th letter of the Greek alphabet (Λ, λ).
    • The symbol lambda is used in physics to represent wavelength.
    • In Greek class, we learned to write the letter lambda.
    • The fraternity's logo features a large lambda.
  2. A symbol used in mathematics and science, especially for wavelength in physics.
    • In the formula, lambda represents the decay constant.
    • The equation uses lambda to denote the wavelength of light.
    • The student calculated the lambda value for the wave.
  3. In computer programming, an anonymous function or a small function defined inline.
    • Lambda expressions are common in modern programming languages.
    • In Python, you can create a lambda function to add two numbers.
    • The programmer used a lambda to sort the list by the second element.