tax ‧ on ‧ o ‧ my /tækˈsɒnəmi $ -ˈsɑː-/ BrE AmE noun ( plural taxonomies ) [uncountable and countable]
[ Date: 1800-1900 ; Language: French ; Origin: taxonomie , from Greek taxis 'arrangement' + French -nomie (from Latin -nomia , from Greek , from nemein 'to share out' ) ]
the process or a system of organizing things into different groups that show their natural relationships, especially plants or animals
—taxonomist noun [countable]