Plural of firebox; multiple combustion chambers in furnaces, boilers, or engines where fuel burns.
Plural form of 'firebox,' following standard English pluralization rules.
Historic locomotives often had distinctive fireboxes whose design affected how efficiently they burned coal—some were round, some rectangular, and the shape made an enormous difference in a locomotive's pulling power and fuel consumption.
Complete word intelligence in one call. Free tier — 50 lookups/day.