an affection peculiar to mankind, occasioned by something that tickles the fancy.

In laughter, the eye-brows are raised about the middle, and drawn down next the nose; the eyes are almost shut; the mouth opens, and shows the teeth, the corners of the mouth being drawn back and raised up; the cheeks seem puffed up, and almost hide the eyes; the face is usually red, and nostrils open, and the eyes wet.