squabbler (noun)

1. In Greek mythology, Eris, the goddess of discord, was often depicted as a squabbler who incited arguments among the gods.

2. The squabbler in the religious community was known for constantly starting arguments over trivial doctrinal differences.

3. The squabbler in the architectural firm caused tension by arguing about insignificant design details.

4. The local art gallery became a hub for squabblers who debated over the meaning and significance of abstract paintings.