garbologist /gär-bolˈə-jist/ (US)

1. A dustman, garbage-collector (facetious)
2. Someone who studies a society's waste materials in order to make deductions about the lifestyles of its people

garbolˈogy noun

• coalizing
• coalman
• coalmaster
• coalmasters
• Coal Measures
• coalmen
• coal merchant
• coal merchants
• coalmine
• coalminer
• coalminers
• coalmines
• coal mouse
• coal oil
• coal owner
• coal owners
• coalpit
• coalpits
• coal plant
• coal plants
• coal-plate
• Coalport
• coal-porter
• coal-porters
• coal pot