sur·gery 
/ˈsɚʤəri/ noun
plural sur·ger·ies /ˈsɚʤəri/ noun 1 : medical treatment in which a doctor cuts into someone's body in order to repair or remove damaged or diseased parts [noncount] ▪ He's a specialist in brain surgery. ▪ The doctor has recommended surgery. ▪ He has recently undergone surgery on his shoulder. ▪ The patient is still in surgery. [=still being operated on] ▪ The doctor has been in surgery [=performing an operation] for two hours. [count] (chiefly US) ▪ She is now recovering from her surgery. [=operation] ▪ a doctor who has performed many surgeries — see also plastic surgery 2 [noncount] chiefly US : the area in a hospital where surgery is performed
▪ The patient was taken directly to surgery. — compare operating room 3 [count] Brit : a place where a doctor or dentist treats people
▪ I was waiting in the doctor's surgery. [=(US) office] 4 [noncount] Brit : office hours 3 5 [count] Brit : a special period of time when people can visit a member of the British Parliament to ask questions
▪ The patient was taken directly to surgery. — compare operating room
▪ I was waiting in the doctor's surgery. [=(US) office]
