n.
Pronunciation: ˌ pr ō -d ə k- ' ti-v ə -t ē , ˌ prä-, pr ə - ˌ d ə k-
Function: noun
Date: circa 1810
1 : the quality or state of being productive
2 : the rate per unit area or per unit volume at which biomass consumable as food by other organisms is made by producers