The Collaborative International Dictionary of English v.0.48:
Disintegrable \Dis*in"te*gra*ble\, a. Capable of being disintegrated, or reduced to fragments or powder. [1913 Webster] Argillo-calcite is readily disintegrable by exposure. --Kirwan. [1913 Webster]WordNet (r) 3.0 (2006):
disintegrable adj 1: capable of melting [syn: meltable, disintegrable]