from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To laugh hard, loudly, or convulsively; guffaw.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To laugh loudly, immoderately, or too often.
from The Century Dictionary and Cyclopedia
- To indulge in loud, continued laughter; to laugh immoderately.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. laugh loudly and in an unrestrained way
I think I shall have a mighty awesome night tonight .... and may even tell u all about it tomorrow ... (hmm perhaps not ALL) * cachinnate* relinquished - curiosity
They reach at once and directly the instinctive sense of the ludicrous, and over them youth and age cachinnate together.
But, heigho! some fly or other is the indispensable adjunct of every pot of ointment, and while I was still jumping for joy at having passed the steep barrier of such a Rubicon, there came a letter from Miss JESSIMINA which constrained me to cachinnate upon the wrong side of nose!
Every time you take a full breath, or when you cachinnate well, the diaphragm descends and gives the stomach an extra squeeze and shakes it.