[f. as prec. + -ING2.] That besieges; employed in a siege.
1813. Examiner, 17 May, 307/2. The besieging corps before Dantzick.
1820. Keats, St. Agnes, xl. The arras … Flutter’d in the besieging wind’s uproar.
1863. Holland, Lett. Joneses, xv. A will as patient … as that which a besieging army needs.
