WordWeight : Weighing the Words

Pronunciation : Com"ma
Part of Speech : n.
Etymology : [L. comma part of a sentence, comma, Gr. Capon.]
Definition : 1. A character or point [,] marking the smallest divisions of a sentence, written or printed.

2. (Mus.)

Defn: A small interval (the difference beyween a major and minor half step), seldom used except by tuners. Comma bacillus (Physiol.), a variety of bacillus shaped like a comma, found in the intestines of patients suffering from cholera. It is considered by some as having a special relation to the disease; -- called also cholera bacillus. -- Comma butterfly (Zo?l.), an American butterfly (Grapta comma), having a white comma-shaped marking on the under side of the wings.
Source : Webster's Unabridged Dictionary, 1913