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 called: magnesia
magnesium oxide in American English
noun
Chemistry
magnesia
Word origin
[1905–10]
Examples of 'magnesium oxide' in a sentence
magnesium oxide
Magnesium oxide crystals polish away dead cells without irritating skin surface.
Times, Sunday Times (2009)
Novacem uses magnesium oxide, which together with other mineral additives, hardens by rapidly absorbing carbon dioxide from the atmosphere.
Times, Sunday Times (2009)
One worth avoiding is magnesium oxide.
Times, Sunday Times (2012)
Chelated forms of magnesium - including magnesium citrate - are better absorbed than magnesium oxide, which is often used in supplements.
The Sun (2017)
The kitchen is raised a step up from the rest of the open-plan ground floor, with elevated appliances and cabinets made from waterproof magnesium-oxide board.