LAMBDA, 1. Dianetic Axiom 11: A life organism is composed of matter and energy in space and time, animated by theta. Symbol: Living organism or organisms will hereafter be represented by the Greek letter Lambda. (Dn Today, p. 968) 2. a chemical heat engine existing in space and time motivated by the life static and directed by thought. (Dn Today, p. 969)
Hubbard, L. R., (1975) Dianetics and Scientology Technical Dictionary, Los Angeles: Church of Scientology of California Publications Organization.