n.1.Copper sulphide, used to color glass.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
At a press conference, Numina Group and Ferretto Group demonstrated a vertical lift module (VLM) with integrated voice picking technologies.
The result of a partnership between the two groups, the combination of Numina's RDS voice picking coupled with Ferretto's VLM delivers faster product picking and retrieval with improved storage density.