having the properties of an alkali; having a pH greater than 7
From Arabic 'al-qalī' (the ashes), referring to plant ashes used to make soap, via Medieval Latin 'alcali'
Alkaline substances are the chemical opposite of acids - think of them as nature's antacids, neutralizing sourness with their basic personality!
Complete word intelligence in one call. Free tier — 50 lookups/day.