lambda

• POS: Noun
• HYPHEN: lamb=da

CIDE DICTIONARY

lambda, n. [NL., fr. Gr. la`mbda.].

•  The name of the Greek letter 1913 Webster]
•  The point of junction of the sagittal and lambdoid sutures of the skull.  [1913 Webster]
•  A subatomic particle carrying no charge, having a mass equal to 2183 times that of an electron; it decays rapidly, typically forming a nucleon and a pion.  [PJC]

Lambda moth (Zoöl.), a moth so called from a mark on its wings, resembling the Greek letter lambda (

OXFORD DICTIONARY

lambda, n.
1 the eleventh letter of the Greek alphabet.
2 the symbol for wavelength.

Etymology

ME f. Gk la(m)bda