n. The quality of being assiduous; constant or diligent application.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. great and constant diligence and attention
Word Usage
"When I first learned a few months ago that garbage trucks were backing up the driveway between these two buildings at unseemly hours, it was curious but could maybe be explained by PMUA worker assiduousness."