This is the 10532nd most frequent Russian word.
виноделен
A winery.
Here, 'виноделен' refers to 'wineries' (genitive plural case), places that produce wine.
Мы посетили несколько великолепных виноделен во время путешествия.
We visited several magnificent wineries during the trip.
In this sentence, 'виноделен' is a genitive plural form of 'винодельня,' used to describe the increasing number of wineries.
Виноделен в этом регионе стало значительно больше за последние годы.
The number of wineries in this region has significantly increased in recent years.
Although this uses 'винодельнями' (instrumental plural), it gives a syntactic variant to explore case usage varieties.