Definition of gtt.
gtt.: Abbreviation meaning drops (from the Latin "guttae", drops). One of a number of hallowed abbreviations of Latin terms that have traditionally been used in prescriptions.
Last Editorial Review: 4/27/2011 5:27:15 PM
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?
Get the latest health and medical information delivered direct to your inbox FREE!