lambda definition by Webster's New World
- the eleventh letter of the Greek alphabet (Λ, λ)
- Particle Physics an uncharged hyperon with a mass of c. 1,115.68 MeV/c, which is c. 2,183 times the mass of an electron: it decays very rapidly, usually into a nucleon and a pion
Origin: Classical Greek ; from Semitic as in Classical Hebrew (language) lāmedh, lamed
lambda definition by American Heritage Dictionary
- The 11th letter of the Greek alphabet. See Table at alphabet.
- A lambda baryon.
Origin: Greek, of Phoenician origin; see lmd in Semitic roots.
lambda - Computer Definition
( ) The Greek letter used by physicists to denote wavelength. See wavelength.
lambda - Investment & Finance Definition
The ratio of the percentage change in an option’s price to the percentage change in an underlying price. Lambda measures the change in option premiums for a percentage point change in the option’s implied volatility. If lambda is high, the value of an option is very sensitive to even small changes in volatility. A low lambda means that volatility changes have little impact on the value of an option.Webster's New World Finance and Investment Dictionary Copyright © 2010 by Wiley Publishing, Inc., Indianapolis, Indiana. Used by arrangement with John Wiley & Sons, Inc.
lambda - Medical Definition
- Symbol λ The 11th letter of the Greek alphabet.
- The craniometric point at the junction of the sagittal and lambdoid sutures.