colonoscopy

noun

co·​lo·​nos·​co·​py ˌkō-lə-ˈnä-skə-pē 

plural colonoscopies

: endoscopic examination of the colon

colonoscope

kō-ˈlä-nə-ˌskōp 

noun

Examples of colonoscopy in a Sentence

Recent Examples on the Web

To explore this, researchers analyzed the cellphone habits of patients visiting the Beth Israel Deaconess Medical Center for a colonoscopy. —Simon Spichak, Health, 10 Sep. 2025

Screening colonoscopies have dramatically improved early detection, but in regions without access, survival drops sharply. —Atharva Gosavi, Interesting Engineering, 10 Sep. 2025

Researchers examined 100 participants between the ages of 35 and 50 who had never undergone a colonoscopy but had completed at least five marathons or two ultramarathons. —Khloe Quill, FOXNews.com, 7 Sep. 2025

Researchers surveyed 125 people undergoing a routine screening colonoscopy (which is recommended starting at age 45) about their smartphone toilet habits, as well as other lifestyle behaviors related to pooping. —Erica Sloan, SELF, 5 Sep. 2025

Word History

First Known Use

1926, in the meaning defined above

Phrases Containing colonoscopy

• virtual colonoscopy

Rhymes for colonoscopy

• laparoscopy
• arthroscopy
• colposcopy
• cystoscopy
• fluoroscopy
• spectroscopy

Medical Definition

colonoscopy

noun

co·​lo·​nos·​co·​py ˌkō-lə-ˈnäs-kə-pē  ˌkäl-ə- 

plural colonoscopies

: endoscopic examination of the colon

transabdominal colonoscopy with a sigmoidoscope via colotomy

colonoscopic

kō-ˌlän-ə-ˈskäp-ik 

adjective