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(Zoöl.), any species of land snail of the genus Truncatella; -- so called because it creeps like the measuring worms.