constant - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “constant”

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constant

adjective  us   /ˈkɑn·stənt/

constant adjective (CONTINUOUS)

nearly continuous or very frequent: We had a constant stream of visitors. Constant also means not changing, or staying the same: Even in this age of high technology, the popularity of hunting and fishing remains constant.
constantly
adverb [not gradable]  us   /ˈkɑn·stənt·li/
They worry constantly about their weight.

constant

noun [C]  us   /ˈkɑn·stənt/

constant noun [C] (QUANTITY)

mathematics a number or value that does not change
(Definition of constant from the Cambridge Academic Content Dictionary © Cambridge University Press)
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