Dictionary.com
Thesaurus.com

preoperative

American  
[pree-op-er-uh-tiv, -uh-rey-tiv, -op-ruh-tiv] / priˈɒp ər ə tɪv, -əˌreɪ tɪv, -ˈɒp rə tɪv /

adjective

  1. occurring or related to the period or preparations before a surgical operation.


Other Word Forms

Etymology

Origin of preoperative

First recorded in 1900–05; pre- + operative

Explanation

Anything that happens before a patient has surgery is preoperative. Your preoperative instructions might include not eating or drinking anything for several hours. People who have their wisdom teeth or their tonsils removed are given a preoperative checklist to help them prepare for the operation. These patients usually have preoperative medication that makes them sleepy or unconscious during the procedure. Doctors and nurses follow preoperative instructions of their own, including hand washing and preparing the site of the surgery.

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"Our study underscores the potential of topical senolytic treatments to enhance wound healing in aging skin, presenting a potentially promising strategy for preoperative care."

From Science Daily May 20, 2026

Lim recalled an instance in which a patient’s daughter read preoperative instructions to her mother the night before surgery.

From Los Angeles Times Jun. 17, 2024

During Biden’s preoperative preparation, physicians also identified a lesion on the left side of her chest whose appearance was consistent with basal cell carcinoma, O’Connor said.

From Washington Post Jan. 11, 2023

Analogous to auto or life insurance, patients’ medical histories, clinical profiles, and possibly a preoperative exam would allow providers to offer personalized insurance quotes.

From Slate Sep. 24, 2022

Sometimes a preoperative test of questionable value results in unanticipated complications, as happened to a man in his 50s scheduled for repair of a very painful hernia.

From New York Times Nov. 15, 2021

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training