1. A precise enumeration or calculation of items, quantities, or occurrences without any margin of error
The warehouse conducted an exact count of all inventory items.
O armazém realizou uma contagem exata de todos os itens do inventário.
2. In statistical or scientific contexts, the precise number of occurrences or measurements
The researcher obtained an exact count of the bacterial colonies.
O pesquisador obteve uma contagem exata das colônias bacterianas.