Contractibility

Con·tract`i·bil'i·ty noun Capability of being contracted; quality of being contractible; as, the contractibility and dilatability of air. Arbuthnot.
Found on http://www.encyclo.co.uk/webster/C/149

Contractibility

• (n.) Capability of being contracted; quality of being contractible; as, the contractibility and dilatability of air.
Found on http://thinkexist.com/dictionary/meaning/contractibility/
No exact match found