Incompressible
Pronunciation : In`com*press"i*ble
Part of Speech : a.
Etymology : [Pref. in- not + compressible: cf. F. incompressible.]
Definition : Defn: Not compressible; incapable of being reduced by force or pressure into a smaller compass or volume; resisting compression; as, many liquids and solids appear to be almost incompressible. -- In`com*press"i*ble*ness, n.
Source : Webster's Unabridged Dictionary, 1913