κάμινον [2 verses](noun sg fem acc) "A furnace" is kaminos, which imeans "oven," or "furnace." Most frequently for baking bread or bricks.  - The word translated as "furnace" is more properly an oven or kiln specifically designed for baking bread or bricks. Because the larger topic here is raising grain, the word would be heard as the "bread oven." this is a productive use for the false wheat. It is not burned to destroy it but to bake the bread from the true wheat.