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Definition of Cachinnation
1. Noun. Loud convulsive laughter.
Definition of Cachinnation
1. n. Loud or immoderate laughter; -- often a symptom of hysterical or maniacal affections.
Definition of Cachinnation
1. Noun. Convulsive, loud laughter. ¹
¹ Source: wiktionary.com
Definition of Cachinnation
1. [n -S]
Medical Definition of Cachinnation
1. Laughter without apparent cause, often observed in schizophrenia. Origin: L. Cachinno, to laugh immoderately and loudly (05 Mar 2000)