noun, noun which may take the genitive case particle 'no'
polka dot pattern
Refers to a pattern of repeated filled circles, commonly used on clothing, fabrics, and accessories.
彼女は水玉模様のワンピースを着ていた。
She was wearing a polka dot dress.
Compound of 水玉 (mizutama, 'water drop') and 模様 (moyō, 'pattern'), referring to a pattern of round spots resembling water drops.