Having a low concentration: low-density urban areas. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "low-density" in a sentence
"This bad guy is called low-density lipoprotein LDL cholesterol."
"Other cholesterol is added to the bloodstream for easy assimilation by various organs and, unfortunately, by arterial walls and this cholesterol is carried by another type of lipoprotein called low-density lipoprotein or LDL for short."
"Nutritional studies have found that soy protein can lower total cholesterol levels and lower the "bad" cholesterol called low-density lipoprotein LDL."