Definition: In Greek, "preprocessor" refers to a function that transforms or processes input data. In this context, it's likely referring to a configuration file for a preprocessor system. Definition in English: A preprocessor is an interpreter that modifies or parses input data before being passed to the actual compiler or other processing engine. For instance, when you run code like `preprocess_syslog.conf`, it processes the incoming syslog records and converts them into the desired output format. This could be a binary file or a string of text, depending on your specific application requirements.