magnesium oxide

noun

, Chemistry.

1. magnesia.

magnesium oxide

noun

1. a white tasteless substance occurring naturally as periclase: used as an antacid and laxative and in refractory materials, such as crucibles and fire bricks. Formula: MgO Also calledmagnesia

Word History and Origins

Origin of magnesium oxide¹

First recorded in 1905–10

Example Sentences

It can be prepared just like magnesium oxide, but is more often made by burning the metal.

From Project Gutenberg

The lid of a biscuit box just in front of the frame does very well to catch the white magnesium oxide formed by burning.

From Project Gutenberg

Magnesium oxide, sometimes called magnesia or magnesia usta, resembles lime in many respects.

From Project Gutenberg

It is virtually a compound of the two oxides, aluminum oxide and magnesium oxide.

From Project Gutenberg

The cement shall not contain more than 1.75% of anhydrous sulphuric acid, nor more than 4% of magnesium oxide.

From Project Gutenberg