Longman Dictionary of Contemporary English homepage

constant

2 noun
     
Related topics: Maths, Numbers
constant2 [countable]
1HM technical a number or quantity that never changes
2 formal something that stays the same even though other things change

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary