Meaning & use
numerosity
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The quality or state of being numerous; also, in psychology, the innate sense of the approximate number or quantity of items in a group.
See it in a sentence
The numerosity of the insect population made it hard to control the infestation.
Researchers tested infants' numerosity by showing them sets of dots differing in quantity.
A note on using this word
In cognitive science, numerosity refers specifically to a nonverbal, intuitive sense of "how many," distinct from formal counting.
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