Term: oil refinery: a refinery for petroleum
Broader: plant: buildings for carrying on industrial labor | Unrelated: pinguinus: great auk
Broader: plant: buildings for carrying on industrial labor | Unrelated: purchase: something acquired by purchase
Broader: plant: buildings for carrying on industrial labor | Unrelated: front burner: top priority
Broader: plant: buildings for carrying on industrial labor | Unrelated: elephas: type genus of the family Elephantidae
Broader: plant: buildings for carrying on industrial labor | Unrelated: lady's maid: a maid who is a lady's personal attendant
Broader: plant: buildings for carrying on industrial labor | Unrelated: orion: a constellation on the equator to the east of Taurus; contains Betelgeuse and Rigel
Broader: plant: buildings for carrying on industrial labor | Unrelated: ski resort: a resort with lodging and facilities for skiing
Broader: plant: buildings for carrying on industrial labor | Unrelated: bank robber: a robber of banks
Broader: plant: buildings for carrying on industrial labor | Unrelated: sawyer: any of several beetles whose larvae bore holes in dead or dying trees especially conifers
Broader: plant: buildings for carrying on industrial labor | Unrelated: gradation: relative position in a graded series