1. the 11th letter of the Greek alphabet
2. the craniometric point at the junction of the sagittal and lamboid sutures of the skull
The Collaborative International Dictionary of English v.0.48:
Lambda \Lamb"da\, n. [NL., fr. Gr. la`mbda.]
1. The name of the Greek letter [Lambda], [lambda],
corresponding with the English letter L, l.
2. (Anat.) The point of junction of the sagittal and lambdoid
sutures of the skull.
3. (Phys.) 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. --MW10
Lambda moth (Zool.), a moth so called from a mark on its
wings, resembling the Greek letter lambda ([Lambda]).
WordNet (r) 3.0 (2006):
n 1: the 11th letter of the Greek alphabet
2: the craniometric point at the junction of the sagittal and
lamboid sutures of the skull
The Free On-line Dictionary of Computing (18 March 2015):
A version of typed lambda-calculus, used to describe
["Outline of a Mathematical Theory of Computation",
D.S. Scott, TM PRG-2, PRG, Oxford U, 1971].