'pachuca tank' definitions:

Definition of 'pachuca tank'

From: GCIDE

pachuca tank \pa*chu"ca tank\ (Metallurgy) A high and narrow tank, with a central cylinder for the introduction of compressed air, used in the agitation and settling of pulp (pulverized ore and water) during treatment by the cyanide process; -- so named because, though originally devised in New Zealand, it was first practically introduced in Pachuca, Mexico. [Webster 1913 Suppl.]