Search gutta (gt) gutta (gt) /gut″ə, go͝ot″ä/ [L, drop] , one drop, or about 1 minim, of a medication. Tweet Telegram VK Random Words institutional review board (IRB) autograft antiglobulin biologist duodenogastric reflux National Institute on Alcohol Abuse and Alcoholism calor-, calori- b.i.d logoff