There are a total of 116 10-letter words containing 'poly', and the number may vary in different dictionaries. You can specify the dictionary and order.

• biopolymer ₂₂
• copolymers ₂₂
• polyamides ₂₀
• polyamines ₂₀
• polyanthas ₁₉
• polyanthus ₂₀
• polyatomic ₂₂
• polychaete ₂₁
• polychrome ₂₄
• polychromy ₂₆
• polyclinic ₂₄
• polyclonal ₂₂
• polycotton ₂₀
• polycyclic ₂₈
• polycystic ₂₄
• polydactyl ₂₃
• polydipsia ₂₀
• polydipsic ₂₃
• polyesters ₁₆
• polyethnic ₂₂
• polygamies ₂₁
• polygamist ₂₁
• polygamize ₃₀
• polygamous ₂₂
• polygenism ₂₂
• polygenist ₁₉
• polygonies ₁₉
• polygonums ₂₃
• polygraphs ₂₃
• polygynies ₂₁
• polygynous ₂₂
• polyhedral ₂₀
• polyhedric ₂₂
• polyhedron ₂₀
• polyhistor ₁₈
• polylysine ₂₀
• polymathic ₂₄
• polymerase ₁₉
• polymerise ₁₉
• polymerism ₂₂
• polymerize ₂₈
• polymerous ₂₀
• polymethyl ₂₄
• polymorphs ₂₄
• polymyxins ₂₉
• polynomial ₂₁
• polyolefin ₂₁
• polyparies ₁₉
• polyphagia ₂₃
• polyphasic ₂₄
• polyphenol ₂₃
• polyphones ₂₂
• polyphonic ₂₅
• polyploids ₂₁
• polyploidy ₂₃
• polypodies ₂₀
• polyptychs ₂₆
• polyrhythm ₂₅
• polysemies ₁₉
• polysemous ₂₀
• polysexual ₂₅
• polytenies ₁₇
• polytheism ₂₁
• polytheist ₁₈
• polythenes ₁₉
• polythetic ₂₁
• polytunnel ₂₀
• polytypism ₂₄
• polyvalent ₂₂
• polywaters ₁₉
• prepolymer ₂₂
• terpolymer ₁₉
• polybagged ₂₀
• polychetes ₂₀
• polyimides ₁₈
• polyketide ₂₀
• polyparium ₁₉
• polysomics ₁₉
• bibliopoly ₁₉
• hydropolyp ₂₄
• hypolydian ₂₂
• polyactine ₁₇
• polyaxials ₂₂
• polyaxonic ₂₄
• polybasite ₁₇
• polycarpic ₂₁
• polychasia ₂₀
• polychrest ₂₀
• polychroic ₂₂
• polycrotic ₁₉
• polyethene ₁₈
• polygamise ₁₈
• polygenies ₁₆
• polygenous ₁₆
• polyglotts ₁₆
• polygraphy ₂₄
• polygynian ₁₉
• polygynist ₁₉
• polyhalite ₁₈
• polyhybrid ₂₄
• polyhydric ₂₄
• polylemmas ₁₉
• polymastia ₁₇
• polymastic ₁₉
• polymeride ₁₈
• polymeries ₁₇
• polyominos ₁₇
• polyonymic ₂₂
• polypidoms ₂₀
• polypodous ₁₈
• polysemant ₁₇
• polysomies ₁₇
• polystylar ₁₈
• polytocous ₁₇
• polyvinyls ₂₁
• polyzoaria ₂₄

There are 116 10-letter words containing poly in the well-known word game dictionary, 66 in the Scrabble US (US/Canada/Thailand - TWL/NWL) dictionary, and 108 in the Scrabble UK (International - SOWPODS/CSW) dictionary, and 72 in the Words with Friends (WWF) dictionary.