One who, or that which, plugs.
A thong or flip-flop.
A dental instrument used to insert fillings.
One who reforms, or who works for reform.
One who was involved in the Reformation.
A device used to convert petroleum refinery naphthas, typically having low octane ratings, into high-octane liquid products called reformates.
A device which converts hydrocarbons into a hydrogen-rich mixture of gases.