English Noun information engine (plural information engines) (thermodynamics) A theoretical engine that converts information into energy for use in work, decreasing heat entropy in the process. (data processing) A data processor. 2021, Michele Kennerly et al., editors, Information, Columbia University Press, →ISBN:As one of its engineers blogged in 2012, Google was transforming itself from an “information engine” to a “knowledge engine.” See also heat engine Maxwell's demon Szilard's engine Mandal-Jarzynski model Further reading Entropy in thermodynamics and information theory on Wikipedia.Wikipedia Wikiwand - on Seamless Wikipedia browsing. On steroids.