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

Derived 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.

"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

Nor would they confirm claims in the filings that a CT scanner needed for preoperative imaging is broken.

From New York Times • Nov. 12, 2022

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

The documented ineffectiveness of the Universal Protocol, combined with the obvious advantages of negative labeling, should lead doctors and health-care risk managers to incorporate wrong-site labeling in their preoperative procedures.

From Washington Post • Nov. 19, 2021

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "preoperative" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com