Sima

/ˈsiː.mə/

Meaning & Definition

noun
In geology, a large expanse of land that has a relatively flat surface, often associated with specific geological features.
The sima of the region is characterized by expansive basalt plateaus.
The layer of the Earth's crust that is rich in silicate minerals and is believed to be the source of continental plates.
Geologists study the sima to understand tectonic movements.
A term used in architecture to refer to a projecting horizontal band or cornice, often found at the top of a wall.
The ancient ruins displayed a beautifully detailed sima that reflected the architectural style of the time.

Etymology

Derived from the Greek word 'sima', meaning 'cavity' or 'hole'.

Common Phrases and Expressions

sima layer:
The layer of the Earth's crust consisting mainly of mafic rocks.
sima and sial:
Refers to the distinction between the silica-magnesia component and the silica-alumina component of the Earth's crust.

Related Words

Slang Meanings

A slang term used in some contexts to mean 'a place to relax' or 'chill spot'.
Let's meet at my sima after school.