noun
: an identity element (as 0 in the group of whole numbers under the operation of addition) that in a given mathematical system leaves unchanged any element to which it is added
noun
: an identity element (as 0 in the group of whole numbers under the operation of addition) that in a given mathematical system leaves unchanged any element to which it is added
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012