Medical Dictionary

aptamer

noun ap·ta·mer \ ˈap-tə-mər \

medical Definition of aptamer

: a short segment of DNA, RNA, or peptide that binds to a specific molecular target (such as a protein)
  • This aptamer works by binding and blocking a major molecule involved in the body's blood-clotting reaction, called thrombin.
  • —Debora MacKenzieNew Scientist6 Oct. 2006
  • Aptamers … are isolated by … the repetitive screening of large pools of randomized molecules for those that bind best to a target.
  • Chemical & Engineering News15 Mar. 1993

Seen and Heard

What made you want to look up aptamer? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!