- a cutaneous eruption accompanied by a prickling and itching sensation, due to an inflammation of the sweat glands.
Origin of prickly heat
An Americanism dating back to 1730–40
Also called heat rash.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for prickly heat
- a nontechnical name for miliaria
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.