/ ˌtæbjʊlə ˈrɑːzə; NAmE / noun ( pl. tab·ulae rasae / ˌtæbjʊliː ˈrɑːziː; NAmE /) (from Latin , formal )
1.
a situation in which there are no fixed ideas about how sth should develop
2.
the human mind as it is at birth, with no ideas or thoughts in it
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WORD ORIGIN
Latin , literally scraped tablet , denoting a tablet with the writing erased.