plural stock cars
: a car used for racing that has the same basic structure as a car normally sold to the public but has a more powerful engine, a stronger frame, etc.
—often used before another noun
stock car racing
Cite this Entry
“Stock car.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/stock%20car. Accessed 16 Apr. 2026.
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