[ad. L. cachinnātiōn-em, n. of action f. cachinnāre: see prec.] Loud or immoderate laughter.
1623. Cockeram, Cachinnation, a great laughter.
1635. Person, Varieties, II. 60. These Cachinnations or laughings … which we heare, are rather Aerall spirits.
1815. Scott, Guy M., iii. The hideous grimaces which attended this unusual cachinnation.
1820. Western Carolinian, 25 July, 1/4. A succession of deafening cachinnations dispelled the illusion.
1868. Browning, Ring & Bk., III. VIII. 767. He moved to mirth and cachinnation all.
