tab ‧ u ‧ la ra ‧ sa /ˌtæbjələ ˈrɑːzə, ˌtæbjʊlə ˈrɑːzə/ BrE AmE noun [singular]
[ Date: 1500-1600 ; Language: Latin ; Origin: 'writing board with everything cleaned off it' ]
literary your mind in its original state, before you have learned anything
tab ‧ u ‧ la ra ‧ sa /ˌtæbjələ ˈrɑːzə, ˌtæbjʊlə ˈrɑːzə/ BrE AmE noun [singular]
[ Date: 1500-1600 ; Language: Latin ; Origin: 'writing board with everything cleaned off it' ]
literary your mind in its original state, before you have learned anything
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012