This is the 14573rd most frequent Turkish word.
pazardaki
"At the market" or "in the market."
Here, 'pazardaki' modifies 'satıcı' (vendor) by specifying their location, i.e., being in the market.
Pazardaki satıcı, taze sebzeler satıyordu.
The vendor at the market was selling fresh vegetables.
The word 'pazardaki' in this use describes the prices ('fiyatları') by clarifying their context as being derived from the market.
Genç öğrenciler, pazardaki fiyatları analiz ederek bir ödev hazırlıyorlardı.
The young students were preparing a homework assignment by analyzing the prices at the market.
In this instance, 'pazardaki' specifies the crowd ('kalabalık') by indicating their involvement or location in the market.