cog ‧ ni ‧ tion /kɒɡˈnɪʃ ə n $ kɑːɡ-/ BrE AmE noun [uncountable]
[ Date: 1400-1500 ; Language: Latin ; Origin: cognitio , from cognoscere 'to be familiar with, know' , from co- ( ⇨ ↑ co- ) + gnoscere 'to come to know' ]
formal the process of knowing, understanding, and learning something SYN thought :
the regions of the brain that are responsible for memory and cognition