Definitions
from The Century Dictionary.
 noun In pathology, a morbid impulse to work over mathematical problems, or to count objects or acts, such as buttons, steps, etc.
from Wiktionary, Creative Commons Attribution/ShareAlike License.
 noun an
obsessivecompulsive disorder in which the subject feels the need tocount things
Etymologies
Sorry, no etymologies found.
Examples

Vampires are said to suffer from a condition called arithmomania: a compulsive desire to count things. numbers: these are defined as a number that can be written as the product of two smaller numbers of half the length which contain all the digits of the larger number.

Vampires are said to suffer from a condition called arithmomania: a compulsive desire to count things. numbers: these are defined as a number that can be written as the product of two smaller numbers of half the length which contain all the digits of the larger number.
uselessness commented on the word arithmomania
Obsessivecompulsive counting of everything: ceiling tiles, vertical blinds, paper clips.
November 8, 2007
reesetee commented on the word arithmomania
Wordie comments.... ;)
November 8, 2007