noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Red cobalt, a secondary hydrated arsenate of cobalt minerals with the formula (Co₃(AsO₄)₂·8H₂O). countable, uncountable
2. 2
   a reddish mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form and used in coloring glass; usually found in veins bearing cobalt and arsenic wordnet

Synonyms

All synonyms

cobalt bloomerythrine

Etymology

From erythr- + -ite.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.