Wiktionary
sidedness
n. 1 The condition of having a specific number or form of sides. 2 handedness.
Usage examples of "sidedness".
And through the development of this manysidedness man may come to finding enjoyment in bloodshed.
Where Swelk's sidedness resulted from a congenitally deformed limb and the need to cope with it, swampbeasts were naturally bilateral in two different respects.
It appears that sidedness stems from the fundamental wiring of the species, and that it developed most significantly when mankind lifted the forefeet from the ground.