Sima
4 lettersnounrareUpdated June 2026
Definition
The continuous lower layer of the Earth's crust, composed of dense rock rich in silicon and magnesium, underlying both continents and ocean floors.
“Volcanic activity along the mid-ocean ridge brings material from the sima to the surface.”
Pronunciation
Syllables
si·ma
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Antonyms
Word Game Tips
Wordle
Ends in MA, two vowels I and A with common consonants, the SI start is worth noting.
Scrabble
Worth 6 points, M adds moderate value and this geology term is valid in Scrabble dictionaries.
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