0 past simple and past participle of diminish
1 to reduce or be reduced in size or importance:
Rising unemployment has diminished the bargaining power of people with jobs.
The inaccuracy of the missiles greatly diminishes their effectiveness.
Her popularity as a singer has diminished since the glory days of the 1980s.
Fresh snow meant that our chances of reaching the summit slowly diminished.
Laboratory models, however, are necessarily diminished representations of everyday-life processes.
Proliferation of granule cell precursors in the dentate gyrus of adult monkeys is diminished by stress.
Aliasing errors are diminished by a controlled amount of artificial dissipation of 6th order at non-resolved wavenumbers.