EVENNESS
evenness
(noun) the quality of being balanced
evenness, invariability
(noun) a quality of uniformity and lack of variation
evenness
(noun) the parity of even numbers (divisible by two)
Source: WordNet® 3.1
Etymology
Noun
evenness (usually uncountable, plural evennesses)
The quality of being even (flat or close in numbers).
Source: Wiktionary
E"ven*ness, n.
Definition: The state of being ven, level, or disturbed; smoothness;
horizontal position; uniformity; impartiality; calmness; equanimity;
appropriate place or level; as, evenness of surface, of a fluid at
rest, of motion, of dealings, of temper, of condition.
It had need be something extraordinary, that must warrant an ordinary
person to rise higher than his own evenness. Jer. Taylor.
Source: Webster’s Unabridged Dictionary 1913 Edition