Meaning Of The Word Ultrabasic

Real Dictionary

What's the definition of Ultrabasic? Find Ultrabasic meanings, definitions and more at the Real Dictionary online.

Ultrabasic Meaning

Ultrabasic Definition
Ultrabasic Definition

What's The Definition Of Ultrabasic?

ultrabasic in American English
adjective: containing iron and magnesium, with little or no silica

ultrabasic in British English
adjective: (of such igneous rocks as peridotite) containing less than 45 per cent silica

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