Definition: The term '.compton.conf' refers to a system or configuration file used by a computer program, usually in Unix-like systems. This file contains settings such as hostname, port number, and IP addresses for connecting to an external server. The word 'conf' is derived from Latin 'con', meaning information or message, and 'fare' meaning something made known or declared. So, '.compton.conf' describes a system configuration used by a computer program, where the information about how the program will interact with an external server is stored in this file.