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Definition of lambda
1 : the 11th letter of the Greek alphabet — see alphabet table
2 : an uncharged unstable elementary particle that has a mass 2183 times that of an electron and that decays typically into a nucleon and a pion
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However, the name is trademarked, and the project opted instead for lambda — the Greek letter used to symbolize wavelength.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lambda'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of lambda
Middle English, from Greek, of Semitic origin; akin to Hebrew lāmedh lamed
Medical Dictionary
Illustration of lambda
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Britannica.com: Encyclopedia article about lambda
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