Friable

Part of speech: adjective (a.)

[friabilis, fr. friare to rub, break, or crumble into small pieces, cf. fricare to rub, E. fray. cf. F. friable.) Easily crumbled, pulverized, or reduced to powder. "Friable ground." Evelyn. "Soft and friable texture." Paley. -- Fri'a-ble-ness, n.