sial

[ sahy-al ]

noun

, Geology.

1. the assemblage of rocks, rich in silica and alumina, that comprise the continental portions of the upper layer of the earth's crust.

sial

/ ˈsaɪəl; saɪˈælɪk /

noun

1. the silicon-rich and aluminium-rich rocks of the earth's continental upper crust, the most abundant individual rock being granite

Derived Forms

• sialic, adjective

Other Words From

• si·alic adjective

Word History and Origins

Origin of sial¹

1920–25; < German, equivalent to Si ( licium ) silicium + Al ( uminium ) aluminum

Word History and Origins

Origin of sial¹

C20: si ( licon ) + al ( uminium )

Example Sentences

"A lot of people, they would have expected that it would have been an impossible task, but every single person, we were confident in our abilities to find this," Bronte Sial, an expert in radiological safety, told Reuters in an interview.

From Reuters

Nothing to worry about, Sial added with a laugh.

From Reuters

Passing trucks, not radiation, were the main danger, said Sial.

From Reuters

Sial said their success proved Australian nuclear scientists were able to stand on their own.

From Reuters

Sial and her colleague played the Stone Temple Pilots, a 90s rock band, softly in the background.

From Reuters