There are a total of 55 11-letter words containing 'rod', and the number may vary in different dictionaries. You can specify the dictionary and order.

• aerodynamic ₂₁
• agriproduct ₂₁
• aphrodisiac ₂₀
• arthrodeses ₁₄
• arthrodesis ₁₄
• coproducers ₂₂
• coproducing ₂₅
• dimetrodons ₁₇
• downtrodden ₁₉
• erodibility ₁₈
• heterodyned ₁₈
• heterodynes ₁₇
• introducers ₁₇
• introducing ₂₀
• outproduced ₂₁
• outproduces ₂₀
• overproduce ₂₃
• parodically ₂₂
• petrodollar ₁₇
• pleurodynia ₂₀
• prodigality ₂₀
• productions ₂₀
• productised ₂₀
• productises ₁₉
• productized ₂₉
• productizes ₂₈
• pterodactyl ₂₁
• reintroduce ₁₇
• reproducers ₁₉
• reproducing ₂₂
• retrodicted ₁₆
• rodenticide ₁₇
• rodomontade ₁₇
• scleroderma ₁₉
• subproducts ₂₃
• urodynamics ₂₂
• acrodromous ₁₆
• aphrodisias ₁₇
• argyrodites ₁₆
• chlorodynes ₂₀
• eurodeposit ₁₄
• eurodollars ₁₂
• macrodactyl ₂₁
• microdrives ₁₉
• nesselrodes ₁₂
• oneirodynia ₁₅
• petrodromes ₁₆
• pleurodonts ₁₄
• prodigalise ₁₅
• prodigalize ₂₄
• producement ₁₈
• rodfishings ₁₉
• scleroderms ₁₆
• smorrebrods ₁₆
• xerodermias ₂₁

There are 55 11-letter words containing rod in the well-known word game dictionary, 27 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 49 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 36 in the Words with Friends (WWF) dictionary.