con ‧ cen ‧ tric /kənˈsentrɪk/ BrE AmE adjective
[ Date: 1300-1400 ; Language: Medieval Latin ; Origin: concentricus , from Latin com- ( ⇨ COM- ) + centrum 'center' ]
having the same centre ⇨ eccentric :
concentric circles
con ‧ cen ‧ tric /kənˈsentrɪk/ BrE AmE adjective
[ Date: 1300-1400 ; Language: Medieval Latin ; Origin: concentricus , from Latin com- ( ⇨ COM- ) + centrum 'center' ]
having the same centre ⇨ eccentric :
concentric circles
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012