JMdict entry #1333630

1. noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verb aggregation (of fish)
2. noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verb economics bunching
3. noun (common) (futsuumeishi)noun or participle which takes the aux. verb surutransitive verbintransitive verb physics bunching (of charged particles)
4. noun (common) (futsuumeishi) biology aggregate (of species)