This is the 11604th most frequent Swedish word.
opererats
"Opererats" means "has been operated on."
The word "opererats" here refers to the passive perfect form of undergoing surgery.
Hon har opererats för blindtarmsinflammation.
She has undergone surgery for appendicitis.
In this sentence, "opererats" is used to indicate a completed action in the past in the passive voice.
Patienten hade just opererats när läkaren kom in.
The patient had just undergone surgery when the doctor came in.
Here, "opererats" is used in a subjunctive/mood setting, indicating a conditional or hypothetical surgery action.