base
Pronunciation
Noun
B1 Intermediate
Quick answer
A substance that can neutralise an acid, forming a solution with a pH greater than seven, or the bottom side of a shape on which it rests.
Synonyms and antonyms
Antonyms
Usage notes
In geometry, "base" means the bottom side of a shape, a completely different sense from the chemistry one.
Test yourself
Which word fits the gap? "Baking soda is a common _____ found in most kitchens."
Answer: base
In your own words, what does "base" mean?
A substance that can neutralise an acid, forming a solution with a pH greater than seven, or the bottom side of a shape on which it rests.
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