Digit
DIGIT (Lat. digitus, finger), literally a finger or toe, and so used to mean, from counting on the fingers, a single numeral, or, from measuring, a finger's breadth. In astronomy a digit is the twelfth part of the diameter of the Sun or Moon; it is used to express the magnitude of an eclipse.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)
