Definition of "lambda" in English

noun

1. The eleventh letter of the Classical and Modern Greek alphabet, the twelfth of the Old Greek alphabet.

2. (physics, mathematics) Unit representation of wavelength.

3. (physics) The cosmological constant.

4. (physics) Ellipsis of lambda baryon.

5. (programming) Ellipsis of lambda expression.

6. (programming) Ellipsis of lambda function.

7. (anatomy) The junction of the lambdoid and sagittal sutures of the cranium.

8. (finance) The percentage change in an option value divided by the percentage change in the underlying asset's price.