Sima

name, noun

name, noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The upturned edge of a roof which acts as a gutter; a cyma.
  2. 2
    The lower layer of the earth's outer crust that underlies the sial and is rich in silica, iron, and magnesium. uncountable
  3. 3
    rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium wordnet
Proper Noun
  1. 1
    A surname.

Synonyms

All synonyms
jinposhoposho

Etymology

Etymology 1

From the Ancient Greek σιμός (simós, “bent upwards”).

Etymology 2

Coined by Eduard Suess in 1909, in Das Antlitz der Erde, as a blend of silicon + magnesium.

Etymology 3

Borrowed from Chinese 司馬 /司马 (sīmǎ).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.