n. A loud, distinct, sound of laughter by a human.
the GNU version of the Collaborative International Dictionary of English
n. A loud, boisterous laugh; a guffaw.
The Century Dictionary and Cyclopedia
n. A loud, coarse, boisterous laugh.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a loud laugh that sounds like a horse neighing
Word Usage
"It was hard to suppress a horselaugh at the weekend's news that Ralph Nader and Cornel West are trying to organize a primary challenge against President Obama."