Jewelry. a hard glass used for imitating gemstones.
(not in technical use)
any glass for imitating gemstones, especially emerald.
any of certain synthetic gemstones.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use hard mass in a sentence
In any case, the pastes set to a hard mass, in which condition the pastes adhere firmly to the grids.The Automobile Storage Battery | O. A. Witte
The womb can be easily felt in the lower part of the woman's abdomen as a hard mass.The Eugenic Marriage, Volume I. (of IV.) | W. Grant Hague, M.D.
After a short time the resulting hard mass is, by means of disintegrators, reduced to a uniform powder.Manures and the principles of manuring | Charles Morton Aikman
The labourer that reads turns Socialist, because his brain cannot digest the hard mass of wonderful facts he encounters.Wisdom, Wit, and Pathos of Ouida | Ouida
No, they would keep on the ground right enough; they were felted and pressed together into a thick, hard mass.The South Pole, Volumes 1 and 2 | Roald Amundsen