From Longman Dictionary of Contemporary Englishmotor poolˈmotor pool noun [countable] American English TTCBECa group of cars, trucks, and other vehicles that are available for people in a particular part of the government or army to use
Examples from the Corpus
motor pool• As head of the Fort Baxter motor pool, Bilko runs all the fun and games on the base.• When the Jeep was found the next day, parked in the Camp Holloway motor pool, it caused a stink.• We stayed with our chargers, in the motor pool.From Longman Business Dictionarymotor poolˈmotor ˌpool noun [countable] American English a group of cars owned by a company or other organization that its members can useSYNcar pool BrE 