lambda

n. letter of the Greek alphabet; consonant "L" (Phonetics)

Lambda (uppercase Λ, lowercase λ) is the 11th letter of the Greek alphabet. In the system of Greek numerals it has a value of 30. Letters that arose from Lambda include the Roman L and the Cyrillic letter El (Л, л).
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Lambda /lamb·da/ point of union of the lambdoid and sagittal sutures. lamb·da n. 1. Symbol The 11th letter of the Greek alphabet. 2. [more]Lambda - Community and Resources

Noun
1. the 11th letter of the Greek alphabet
(hypernym) letter, letter of the alphabet, alphabetic character
(member-holonym) Greek alphabet
2. the craniometric point at the junction of the sagittal and lamboid sutures of the skull
(hypernym) craniometric point

n. lambda, letter of the Greek alphabet; consonant "l" (Phonetics)