hydroxide

American  

[hahy-drok-sahyd, -sid] / haɪˈdrɒk saɪd, -sɪd /

noun

1. a chemical compound containing the hydroxyl group.

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hydroxide British  

/ haɪˈdrɒksaɪd /

noun

1. a base or alkali containing the ion OH ^–

2. any compound containing an -OH group

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hydroxide Scientific  

/ hī-drŏk′sīd′ /

1. A chemical compound containing one or more hydroxyl radicals (OH). Inorganic hydroxides include hydroxides of metals, some of which, like sodium hydroxide (caustic soda) and calcium hydroxide, are strong bases that are important industrial alkalis. Some metal hydroxides, such as those of zinc and lead, are amphoteric (they act like both acids and bases). Organic hydroxides include the alcohols.

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Etymology

Origin of hydroxide

First recorded in 1820–30; hydr- ² + oxide

Example Sentences

Scott said Wesfarmers would also be open to expanding a refinery, which is currently being ramped up and is needed to produce battery-grade lithium hydroxide.

From The Wall Street Journal • Feb. 19, 2026

Albemarle also said it would be idling the remaining operating train at its Kemerton lithium hydroxide processing plant in Western Australia.

From Barron's • Feb. 12, 2026

Current supplied to the electrode in the water chamber splits water molecules, producing hydrogen gas and negatively charged hydroxide ions that attract positively charged lithium ions in the brine, drawing them through the membrane.

From Science Magazine • Nov. 27, 2024

The first refined lithium to be commercially produced in Australia happened back in 2022, when Perth-based IGO announced that it was making battery-grade lithium hydroxide at its Kwinana Refinery in Western Australia.

From BBC • Sep. 25, 2024

Lithium hydroxide was used to absorb the carbon dioxide in our exhaled breath.

From "Flying to the Moon: An Astronaut's Story" by Michael Collins