noun
: a rate that changes by regular gradations: as
a. : a life-insurance premium rate that increases or decreases each year
b. : a utilities rate whereby an increase in unit consumption results in a decrease in unit price
noun
: a rate that changes by regular gradations: as
a. : a life-insurance premium rate that increases or decreases each year
b. : a utilities rate whereby an increase in unit consumption results in a decrease in unit price
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012