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Reference Terms
from Wikipedia, the free encyclopedia

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Laughter

Laughter is the biological reaction of humans to moments or occasions of humor: an outward expression of amusement.

Laughter is subcategorised into various groupings depending upon the extent and pitch of the laughter: giggles, clicks (which can be almost silent), chortles, chuckles, hoots, cackles, sniggers and guffaws are all types of laughter.

Smiling may be considered a mild silent form of laughter.

Some studies indicate that laughter differs depending upon the gender of the laughing person: women tend to laugh in a more "sing-song" way, while men more often grunt or snort.

Note:   The above text is excerpted from the Wikipedia article "Laughter", which has been released under the GNU Free Documentation License.
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