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a unit of mass in the SI system; one thousandth of a kilogram. (See also Table of Weights and Measures in the Appendix and si units.)
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
gmAvoid using this obsolete abbreviation.
Former abbreviation for gram.
Farlex Partner Medical Dictionary © Farlex 2012
GMabbrev. genetically manipulated/ genetically modified, for example GM food.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005