Definition of Hg
Hg: Symbol for the metallic element mercury.
The abbreviation "mm Hg" means millimeters of mercury, the height of a column of mercury, as in a blood pressure reading.
Mercury is poisonous to people. See Mercury poisoning.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=16166
Last Editorial Review: 10/9/2012
Drug Medical Dictionary of Terms by Letter
Medical Dictionary Term:
Women's Health
Find out what women really need.
Updated & New
