1. Rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium

Derived forms: simas

Type of: rock, stone

Part of: crust, Earth's crust

Encyclopedia: Sima, Comoros Sima Sima, Tibet Sima, Hungary

• frenulum
• frenum
• frenzied
• frenziedly
• frenzy
• freon
• frequence
• frequency
• frequency band
• frequency distribution
• frequency modulation
• frequency response
• frequency-response characteristic
• frequency-response curve
• frequent
• frequentation
• frequentative
• frequenter
• frequently
• fresco
• fresh
• fresh bean
• fresh breeze
• fresh fish
• fresh food