hematinon

Century Dictionary and Cyclopedia

1. n. Same as hæmatinum; also, a similar red glass made by modern processes.

Wiktionary

1. n. A red colour consisting of silica, borax, and soda, fused with copper oxide and used in enamels, mosaics, etc.

GNU Webster's 1913

1. n. A red consisting of silica, borax, and soda, fused with oxide of copper and iron, and used in enamels, mosaics, etc.