n.
Intestinal infection with the protozoan Giardia lamblia. It is usually asymptomatic in humans but may produce abdominal cramps, diarrhea, and nausea.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
