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In sports, when two competitors tie for first place. Also used in political races to describe a race that is too close to call.
The class voted on pizza toppings but there was a dead heat between sausage and anchovies.
by Danial Druff May 27, 2011
A heat with zero percent humidity. A heat so powerful and so strong it makes people weep in its presence.
Out on the baseball mound Matt passed out from the dead heat.
by Stud Mcmuffin May 27, 2009