cachinnation


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Related to cachinnation: cachinnating, cachinnator

cachinnation

 [kak″ĭ-na´shun]
excessive, hysterical laughter.

cach·in·na·tion

(kak'i-nā'shŭn),
Laughter without apparent cause, often observed in schizophrenia.
[L. cachinno, to laugh immoderately and loudly]

cach·in·na·tion

(kak'i-nā'shŭn)
Laughter without apparent cause, often observed in schizophrenia.
[L. cachinno, to laugh immoderately and loudly]
References in periodicals archive ?
In fact it was one general [begin strikethrough]continual[end strikethrough] smile varied by guffaws, [begin strikethrough]grins[end strikethrough] grins, and every known all forms of cachinnation. Here was a stray Senator or Representative, there a head of a Bureau or even Department, swarms of clerks up to nine o'clock, visitors, the colored people, the "knights," mechanics-the whole mass]--[begin strikethrough]all [end strikethrough]put in [begin strikethrough]a[end strikethrough] merry humor by these amusing cartoons.
It used to send the poor queen into fits of cachinnation.