hydroxide ion

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Definitions from WordNet

Noun hydroxide ion has 1 sense

hydroxide ion, hydroxyl ion - the anion OH having one oxygen and one hydrogen atom
--₁ is a kind of anion

Definitions from the Web

Hydroxide Ion

Description:

The hydroxide ion refers to a negatively charged polyatomic ion containing one oxygen atom and one hydrogen atom. It has the chemical formula OH⁻ and carries a net charge of -1. Hydroxide ions are commonly found in various chemical compounds and are well-known for their involvement in acid-base reactions.

Senses and Usages:

Sense 1:

Part of Speech:

Noun

Definition:

A negatively charged ion consisting of one oxygen atom and one hydrogen atom, represented by the chemical formula OH⁻.

Example Sentence:

The hydroxide ion is commonly found in solutions of strong bases, like sodium hydroxide (NaOH) or potassium hydroxide (KOH).

Sense 2:

Part of Speech:

Noun

Definition:

The negatively charged species produced when a base (such as a hydroxide compound) dissolves in a solvent.

Example Sentence:

Sodium hydroxide, when dissolved in water, releases hydroxide ions that make the solution highly alkaline.

Sense 3:

Part of Speech:

Noun

Definition:

A hydroxide ion can also refer to a negatively charged atomic or molecular entity that contains an oxygen atom bonded to a metal atom.

Example Sentence:

Aluminum hydroxide, Al(OH)₃, is an example of a compound where hydroxide ions are bonded to aluminum ions.