1. dock workers who load and unload cargo from ships
Usage: nautical; historical
2. taxonomists who prefer to group organisms into fewer, broader categories
Usage: biology; technical

Examples

• The lumpers worked through the night to unload the cargo ship.
• Historical records show that lumpers were essential to port operations.
• The debate between lumpers and splitters continues in biological classification.
• Some taxonomists are lumpers who prefer simpler classification systems.
• The lumpers argued for combining the two species into one category.
• Dock lumpers formed unions to protect their working conditions.