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.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=8356
Last Editorial Review: 4/27/2011 5:27:15 PM
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