sima

[sahy-muh]

noun Geology.

an assemblage of rocks, rich in silica and magnesium, that constitutes the lower layer of the earth's crust and is found beneath the ocean floors and the sial of continents.

Origin of sima

< German (1909), equivalent to Latin si(licium) silicium + ma(gnesium) magnesium

Related formssi·mat·ic

[sahy-mat-ik] /saɪˈmæt ɪk/, adjective

sima

[sahy-muh]

noun Architecture.

the uppermost member of a full classical order, usually a cyma recta, representing a roof gutter; cymatium.

Origin of sima

variant of cyma

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sima

Contemporary Examples of sima

I know Sima Samar, the chair of the human-rights commission there.
Mary Robinson: Climate Change’s Gender Gap
Katie Baker
March 8, 2013
But rather than showing any signs of slowing down, when asked about her personal source of energy, Sima had a ready answer.
Crisis Group and Hillary Clinton Honor Women in Pursuit of Peace
Swanee Hunt
December 18, 2011
Let me tell you about Dr. Sima Samar, one of three reported “finalists.”
The Woman Who Should Have Won Obama's Nobel
Elaine Lafferty
October 12, 2009

Historical Examples of sima

Sima was the earlier name in the MS., but was erased by Linnus.
The Journal of the Proceedings of the Linnean Society - Vol. 4
Various
They further mention the presence of Arabs and say that in 674 a queen named Sima ascended the throne and ruled justly.
Hinduism and Buddhism, An Historical Sketch, Vol. 3 (of 3)
Charles Eliot
"Sima, my dear, don't agitate yourself," said Sergei Modestovich in a whisper.
The Old House and Other Tales
Feodor Sologub
Rabbana Ashi (born 352, died 427) was the son of Sima, and the descendant of an ancient family.
History of the Jews, Vol. II (of 6)
Heinrich Graetz
The Batoko wife of Sima came up from the Falls, to welcome her husband back, bringing a present of the best fruits of the country.
A Popular Account of Dr. Livingstone's Expedition to the Zambesi and Its Tributaries
David Livingstone

British Dictionary definitions for sima

sima

noun

the silicon-rich and magnesium-rich rocks of the earth's oceanic crust, the most abundant individual rock being basalt

the earth's continental lower crust, probably comprised of gabbro rather than basalt

Derived Formssimatic (saɪˈmætɪk), adjective

Word Origin for sima

C20: from si (lica) + ma (gnesia)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012