- an abnormally high concentration of sodium in the blood.
Also hy·per·nat·ro·ne·mi·a [hahy-per-na-truh-nee-mee-uh] /ˌhaɪ pərˌnæ trəˈni mi ə/.
Origin of hypernatremia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hypernatremia
The ill effects of hypernatremia are primarily caused by cell shrinkage and damage in the brain.
Salt (or, more specifically, sodium) excess goes by the medical term “hypernatremia.”
- An abnormally high plasma concentration of sodium ions.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.