This is the 14799th most frequent Russian word.
плодотворную
"Fruitful" or "productive."
The word "плодотворную" is used here as an adjective describing the noun "встречу" (meeting). It conveys the meaning that the meeting was productive and yielded positive outcomes.
Мы провели плодотворную встречу.
We had a fruitful meeting.
In this sentence, "плодотворную" functions as an adjective modifying "идею" (idea), emphasizing that the idea has the potential to be productive or yield fruitful results.
Она дала нам плодотворную идею.
She gave us a productive idea.
Here, "плодотворную" is an adjective that describes "перспективу" (prospect), indicating a promising or beneficial prospect for success or positive results.