This is the 12071st most frequent Portuguese word.
refrigerada
"Refrigerada" means "chilled" or "refrigerated" in English.
In this sentence, 'refrigerada' is an adjective describing 'água', indicating that the water is cooled or chilled.
Eu prefiro água refrigerada em dias quentes.
I prefer chilled water on hot days.
Here, 'refrigerada' describes 'sala de aula', meaning that the air conditioning system maintains the room cool.
A sala de aula está bem refrigerada para o verão.
The classroom is well air-conditioned for the summer.
In this usage, 'refrigerada' refers to the preservation method for 'carne', implying it should be kept in a cold environment.