alkaline Definition

  • 1having a pH greater than 7, and therefore having a lower concentration of hydrogen ions than pure water
  • 2relating to or containing an alkali; having a pH greater than 7

Using alkaline: Examples

Take a moment to familiarize yourself with how "alkaline" can be used in various situations through the following examples!

  • Example

    Alkaline soils are not suitable for growing most crops.

  • Example

    Alkaline batteries are commonly used in household devices.

  • Example

    Drinking alkaline water can help neutralize stomach acid.

alkaline Synonyms and Antonyms

Synonyms for alkaline

Antonyms for alkaline

Phrases with alkaline

  • a diet that emphasizes the consumption of alkaline foods and discourages the consumption of acidic foods


    She follows an alkaline diet to maintain her health.

  • a group of metallic elements including magnesium, calcium, strontium, barium, and radium, which have two valence electrons and react with oxygen to form alkaline oxides


    Alkaline earth metals are important components of many minerals and materials.

  • an enzyme found in many tissues, especially in the liver and bones, that catalyzes the hydrolysis of phosphate esters in alkaline solution


    Alkaline phosphatase is often used as a marker of liver and bone disease.

Origins of alkaline

from French 'alcalin', from Arabic 'qalī', meaning 'ashes of saltwort'


Summary: alkaline in Brief

'Alkaline' [ˈælkəlaɪn] refers to substances that have a pH greater than 7, indicating a lower concentration of hydrogen ions than pure water. Examples include alkaline soils, batteries, and water. The term extends into phrases like 'alkaline diet,' which emphasizes the consumption of alkaline foods, and 'alkaline earth metals,' which are a group of metallic elements. 'Alkaline' is the opposite of 'acidic.'