rate(redirected from ratas)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.
Related to ratas: Rattus rattus
a. a price or charge with reference to a standard or scale
b. (as modifier): a rate card
2. a charge made per unit for a commodity, service, etc.
3. a wage calculated against a unit of time
(science and technology)
The amount of change of some quantity during a time interval divided by the length of the time interval.