Marron \Mar*ron"\, n. [See {Maroon}, a.] 1. A large chestnut. [Obs.] --Holland. 2. A chestnut color; maroon. 3. (Pyrotechny & Mil.) A paper or pasteboard box or shell, wound about with strong twine, filled with an explosive, and ignited with a fuse, -- used to make a noise like a cannon. [Written also {maroon}.]