from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A period of unusually hot weather.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A period of exceptionally hot weather.
- n. Three consecutive days with daytime high temperature of 90 degrees Fahrenheit or higher.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a wave of unusually hot weather
Sorry, no etymologies found.