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Webster 1913 Edition
Cachinnation
Cachˊin-na′tion
(kăkˊĭn-nā′shŭn)
, Noun.
[L.
cachinnatio
, fr. cachinnare
to laugh aloud, cf. Gr. καχάζειν
.] Loud or immoderate laughter; – often a symptom of hysterical or maniacal affections.
Hideous grimaces . . . attended this unusual
cachinnation
. Sir W. Scott.
Webster 1828 Edition
Cachinnation
CACHINNATION
,Noun.