re ‧ fin ‧ e ‧ ry /rɪˈfaɪnəri/ BrE AmE noun ( plural refineries ) [countable]
[ Word Family: noun : ↑ refinement , ↑ refinery ; verb : ↑ refine ; adjective : ↑ refined ≠ ↑ unrefined ]
a factory where something such as oil or sugar is made purer ⇨ refine
oil/petroleum/sugar refinery