What does Rate, maternal mortality mean in medical term?

Rate, maternal mortality means: Ratio, Maternal Mortality: The amount of maternal deaths
Divided by either the number or the percentage of live births, the following is a table relating to childbearing.
Births and fetal deaths for that year. In the United States, there is a high maternal mortality rate.
1993-1994: 0.1 for 1,000 live births. That’s 1 death per 10,000 live births.
(in Medical Dictionary)