[f. as prec. + -ING1.] The action of the vb. EXPAND in its various senses. Also attrib.
1844. W. Upton, Physioglyphics, 9. Putting g, then, first, and attaching to it its expanding sense.
1866. G. Macdonald, Ann. Q. Neighb., xxx. (1878), 517. Expanding of umbrellas.
