Cre ‧ ta ‧ ceous /krəˈteɪʃəs, krɪˈteɪʃəs/ BrE AmE adjective
[ Date: 1600-1700 ; Language: Latin ; Origin: cretaceus , from creta 'chalk' ]
the Cretaceous period was the time long ago when rocks containing ↑ chalk were formed
Cre ‧ ta ‧ ceous /krəˈteɪʃəs, krɪˈteɪʃəs/ BrE AmE adjective
[ Date: 1600-1700 ; Language: Latin ; Origin: cretaceus , from creta 'chalk' ]
the Cretaceous period was the time long ago when rocks containing ↑ chalk were formed
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012