tabula ra·sa \-ˈräsə, -ˈrāsə\noun (pluraltabulae ra·sae \-ˈräˌsī, -ˈrāˌsē\) Etymology: Latin : a smoothed tablet or blank slate — used especially of the mind before receiving outside impressions < came into this world with a mind innocent and blank, a tabula rasa — Times Literary Supplement > — see lockeanism