English
protoglobin
From proto- + globin.
Today it means
noun A simple globin, found in some archaea, that can bind oxygen and carbon monoxide
Sources
Sources: Wiktionary, “protoglobin”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / protoglobin