\Loop"ing\, n. [Cf. D. loopen to run. Cf. {Loop} a mass
of iron, {Leap}.] (Metal.)
The running together of the matter of an ore into a mass,
when the ore is only heated for calcination.

\Loop"ing\, p. pr. & vb. n.
of {Loop}.
{Looping snail} (Zo["o]l.), any species of land snail of the
   genus {Truncatella}; -- so called because it creeps like
   the measuring worms.