noun

sima

Sima (noun) means (geology) The dense layer of the Earth's crust rich in silicon and magnesium that lies beneath the continents and forms the ocean floor. Example: “The sima is denser than the lighter sial layer that makes up the continents.”

noun

(geology) The dense layer of the Earth's crust rich in silicon and magnesium that lies beneath the continents and forms the ocean floor.

"The sima is denser than the lighter sial layer that makes up the continents."

How to use sima

Learner’s notes

In plain EnglishA geology term for the heavier rock layer under the Earth's crust, made mostly of silicon and magnesium.

Easily confused with

sial

Word forms

simas plural, Simas plural

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Fill the gap

Can you complete this real example?

The _____ is denser than the lighter sial layer that makes up the continents.

Etymology

A blend formed from "silicon" and "magnesium."

Rhymes for sima

Ima lima Dima Mima prima Shima Fatima Jemima Kojima Tajima Oshima Cosima

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Frequently asked questions

What does “sima” mean?

The word “sima” means (geology) The dense layer of the Earth's crust rich in silicon and magnesium that lies beneath the continents and forms the ocean floor. In plain terms, a geology term for the heavier rock layer under the Earth's crust, made mostly of silicon and magnesium.

How do you use “sima” in a sentence?

Here is “sima” used in a sentence: “The sima is denser than the lighter sial layer that makes up the continents.”

What part of speech is “sima”?

“Sima” is a noun.

What is the meaning of sima?

"sima" (noun) means (geology) The dense layer of the Earth's crust rich in silicon and magnesium that lies beneath the continents and forms the ocean floor.