This is the 8290th most frequent Russian word.
межпоселенческом
"Intersettlement" or "between settlements."
The word 'межпоселенческом' refers to something between settlements or involving multiple settlements, describing the cultural center as serving such a purpose.
Он работал в межпоселенческом культурном центре.
He worked in the inter-settlement cultural center.
Here, 'межпоселенческом' qualifies the museum by highlighting its inter-settlement scope or function.
Мероприятие прошло в межпоселенческом музее.
The event took place in the inter-settlement museum.
In this sentence, 'межпоселенческого' is used to describe cooperation between settlements, focusing on collaborative inter-settlement efforts.