This is the 12793rd most frequent Russian word.
круглосуточном
"Круглосуточном" means "around-the-clock" or "24/7."
Here, "круглосуточном" describes the operating hours of the cafe, indicating it is open 24 hours a day.
Мы решили остановиться в круглосуточном кафе на дороге.
We decided to stop at a round-the-clock cafe on the road.
In this sentence, "круглосуточном" denotes the nature of the duty, implying it lasts 24 hours.
Он работает на круглосуточном дежурстве в больнице.
He works on a round-the-clock duty at the hospital.
"Круглосуточном" here characterizes the pharmacy as being open all hours, available night and day.