What is another word for geartrain?
Pronunciation: [ɡˈi͡ətɹe͡ɪn] (IPA) 
A geartrain is a set of gears that work together to transmit motion or power between two rotating shafts. There are several different synonyms for the word geartrain, including gear system, transmission, drivetrain, powertrain, and mechanical drive. Each of these terms describes the same basic concept of a system of gears working together to transfer energy or motion from one place to another. While the term geartrain is most commonly used in mechanical engineering and manufacturing, these other synonyms can be useful for describing similar systems in other contexts, such as automotive and transportation engineering.
