ter ‧ tia ‧ ry /ˈtɜːʃəri $ ˈtɜːrʃieri, -ʃ ə ri/ BrE AmE adjective technical
[ Date: 1500-1600 ; Language: Latin ; Origin: tertiarius 'of or containing a third' , from tertius 'third' ]
third in place, degree, or order
ter ‧ tia ‧ ry /ˈtɜːʃəri $ ˈtɜːrʃieri, -ʃ ə ri/ BrE AmE adjective technical
[ Date: 1500-1600 ; Language: Latin ; Origin: tertiarius 'of or containing a third' , from tertius 'third' ]
third in place, degree, or order
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012