This is the 1851st most frequent Turkish word.
eleştiren
"Eleştiren" means "criticizing" or "one who criticizes."
In this sentence, 'eleştiren' is used as a descriptive participle to describe 'okur' (reader), indicating those who criticize.
Bu kitabı eleştiren birçok okur vardı.
There were many readers criticizing this book.
Here, 'eleştiren' is used to form a characteristic of the gaze, implying a scrutinizing manner.
Eleştiren gözlerle etrafına bakıyordu.
She was looking around with critical eyes.
In this instance, 'eleştiren' modifies 'makale' (article), specifying that the article engages in critique.