PROGRESSIVITY
Meaning of PROGRESSIVITY in English
Pronunciation: ˌ pr ō -( ˌ )gre- ' si-v ə -t ē
Function: noun
Date: 1883
: the quality or state of being a progressive tax
Merriam Webster Collegiate English Dictionary.
Merriam Webster - Энциклопедический словарь английского языка.
2012