Definition of malacon in US English:

malacon

noun

Mineralogy
  • A soft brown altered form of zircon.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From German Malakon from ancient Greek μαλακόν, neuter of μαλακός soft.

Pronunciation

malacon

/ˈmaləkən/