- 1(of a payment or share of something) calculated according to how much of something has been used, the amount of work done, etc. synonym proportionate
- 2 If costs go up, there will be a pro rata increase in prices. Vacation entitlement is calculated on a pro rata basis, according to length of service.
NAmE//ˌproʊ ˈreɪt̮ə//(from Latin) (formal)
Prices will increase pro rata.
pro rata adverbjump to other results