Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- v. To laugh hard, loudly, or convulsively; guffaw.
Century Dictionary and Cyclopedia
- To indulge in loud, continued laughter; to laugh immoderately.
Wiktionary
- v. intransitive To laugh loudly, immoderately, or too often.
WordNet 3.0
- v. laugh loudly and in an unrestrained way
Etymologies
- From Latin cacchinō ("laugh aloud"), an onomatopoeia. (Wiktionary)
- Latin cachinnāre, cachinnāt-, of imitative origin. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“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.”
Lists
These user-created lists contain the word ‘cachinnate’.
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Additional 250 Spelling Words
Words for the diehard intermediate and advanced spellers
facetiae, sagittary, anthophilous, hydromancy, pandect, carillonneur, tabbouleh, litterateur, windgall, pinguid, tressure, moderne and 238 more...
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Of Imitative Origin
Words formed in imitation of the sound of the things they signify.
bawl, biff, blizzard, blob, blooper, bob, boff, bomb, bonkers, boo, borborygmus, brouhaha and 148 more...
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phrontistery - c
from phrontistery.info
caballine, cabas, cable, caboched, cabochon, caboose, cabotage, cabré, cabrie, cabriole, cabriolet, cacaesthesia and 1298 more...
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Ayatollah's list
Trinkets of lexical goodness.
floccinaucinihili..., quomodocunquize, curmudgeon, illaqueate, ipsissimosity, heterochthonous, hakenkreuz, forisfamiliate, appropinquate, apodyopsis, baryphony, cachinnate and 146 more...
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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difficult words
ordure, tatterwallop, callipygian, odious, colophon, cynosure, hardener, emollience, valetudinarian, demonym, volage, polysemantic and 257 more...
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Verba Dilecta
delectable, notate, pauciloquy, paucity, pauciloquent, paucify, interscapilium, uropygium, inferna, nota, equipollent, prepollent and 677 more...
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euphonic logorrhea
cephalopodous, plumulaceous, oblomovism, etiolation, pavonine, somnolent, logorrhea, fulguration, gossamer, prestidigitation, daffodil, inchoate and 174 more...
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List Erine
cool mint antiseptic
shalom, cattywampus, bourgeoisie, aerophile, traverse, grotto, epicurean, ex cathedra, nautilus, epitaph, lathe, continuum and 753 more...
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timrmortiss's list
compotation, deodand, lignify, obstreperous, noetic, promantia, nostrum, cynosure, sesquipedalian, callipygian, inchoate, hortatory and 93 more...
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Don't Be a LAZY LINGUIST!
Words that remind me to:
Stop speaking with laze.
Exercise my intellect more than my tongue.
Choose Better Company.
This is not the "Ooh, I love the way these words ...splore, inoculate, dysphemism, bruit, mellifluous, winsome, rancor, aplomb, equivocate, palpable, equivocate, licentious and 128 more...
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Vocab++
Words as I learn them.
fetid, mezzanine, hiatus, austerity, subliminal, resplendent, implacable, impugn, debase, exiguous, cirque, holster and 2538 more...
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What David Foster Wallace circled in ...
ablative, ablaut, abulia, acephalous, ACTH, adit, adumbrate, agrapha, ailanthus, aleatory, alfresco, algolagnia and 474 more...
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What David Foster Wallace Circled in ...
http://www.slate.com/id/2250784/
ablative absolute, ablaut, abulia, acephalous, ACTH, adit, adumbrate, agrapha, aleatory, ailanthus, alfresco, algolagnia and 482 more...
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Wordie/Wordnik Curio Cabinet
Oddments culled from my "main" lists that belong in a display cabinet of their own, plus sundry other curiosities. :-)
zeugma, ziggurat, xiphoid, xeric, whizgigging, whangdoodle, viviparous, vivific, vinolent, verjuice, vellicate, velleity and 1193 more...
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Verbal Advantage List
ostensible, paraphrase, digress, uncanny, candor, morose, adept, saturated, pragmatic, congenial, capricious, blatant and 487 more...
Tweets
Looking for tweets for cachinnate.

ag0991 to laugh loudly and raucously; to guffaw (especially in an exceptionally irritating manner) Dec 2, 2008