Definition of motor for English Language Learners : of, relating to, used in, or involving a vehicle that is powered by a motor (such as a car or motorcycle) : having a motor
Ancient Greeks and Romans used aluminum salts for dressing wounds. However, aluminum metal was not isolated until the 19th century. Danish chemist Hans Christian Ãrsted first produced aluminum in 1825 by reacting aluminum chloride with potassium amalgam. Therefore, Ãrsted is considered to be the discoverer of Aluminum.
Davy originally called it alumium (1812), but his publishers amended this to aluminum, which remains the U.S. word. British editors amended the name again to aluminium which is the modern preferred British form, to better harmonize with other element names like sodium, potassium, etc..