formicary Meaning, Definition & Usage

  1. noun a mound of earth made by ants as they dig their nest
    anthill.

WordNet

For"mi*ca*ry noun
Etymology
LL. formicarium, fr. L. formica an ant.
Definitions
  1. (Zoöl.) The nest or dwelling of a swarm of ants; an ant-hill.

Webster 1913