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sima

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sima¹

Rhymes with -aɪmə

Where it comes from

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

noun simas

  1. The upturned edge of a roof which acts as a gutter; a cyma.

sima²

Rhymes with -aɪmə

Where it comes from

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

noun

  1. uncountable The lower layer of the earth's outer crust that underlies the sial and is rich in silica, iron, and magnesium.

Sima³

Where it comes from

Borrowed from Chinese 司馬 /司马 (sīmǎ).

proper noun Simas

  1. A surname.

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Cite this
MLA

"sima." Wiktionary, via Micwyn, micwyn.com/word/sima. Accessed 6 Nov. 2026.

APA

sima. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/sima

Chicago

"sima." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/sima.

BibTeX
@misc{sima_2026,
  title = {sima},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/sima},
  urldate = {2026-11-06}
}