noun

• One who reforms, or who works for reform.
• (historical, Christianity) One who was involved in the Reformation.
• (chemical engineering, fuel cells) A device which converts hydrocarbons into a hydrogen-rich mixture of gases.
• (petrochemistry) A device used to convert petroleum refinery naphthas, typically having low octane ratings, into high-octane liquid products called reformates.
• (Canada, historical) A member of the Reform movement in 19th-century Canada.
• (Canadian politics) A member of the Reform Party of Canada, which existed from 1987 to 2000.
• (Christianity, historical) Alternative letter-case form of reformer (“one involved in the Reformation”) [One who reforms, or who works for reform.]