LGBTQ symbol lambda http://homosaurus.org/v2/lambda https://en.wikipedia.org/wiki/Lambda https://homosaurus.org/terms/lambda https://www.wikidata.org/wiki/Q10897 In 1970, a lowercase lambda was chosen by Tom Doerr as the symbol of the New York chapter of the Gay Activists Alliance. The lambda symbol became associated with Gay Liberation and recognized as an LGBTQ symbol for some time afterwards, being used as such by the International Gay Rights Congress in Edinburgh, the gay rights organization Lambda Legal, and the Lambda Literary Foundation, among others. The eleventh letter of the Greek alphabet, representing the sound /l/. In the system of Greek numerals lambda has a value of 30. Lambda is derived from the Phoenician Lamed Lamedh. Lambda gave rise to the Latin L and the Cyrillic El (Л). Λ λ