Bilithon

/ˈbɪlɪˌθɑːn/ noun

A theoretical or hypothetical stone or mineral composed of two distinct lithological (rock-related) components.

From 'bi-' (two) + Greek 'lithos' (stone) + '-on' (a neutral suffix used in scientific naming). This appears to be a rare or specialized geological term.

📖 Full word page — etymology, 47 translations, audio 🔑 Get Free API Key — 50 lookups/day 📚 Read the Docs — integrate Word Orb