countable
adjective
able to be counted.
countably
-
a word derived from
countable.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A meager set is a set contained in the countable union of nowhere dense sets, such as the circumference of a circle in the plane, or finitely or countably many such circumferences.
From Scientific American ● Aug. 16, 2021
A collection of objects is countably infinite if you can list the objects so you know where each one is on the list and what comes next.
From Scientific American ● Jan. 12, 2019
A similar argument can demonstrate that while the rational numbers are countably infinite, the irrational numbers are uncountably so.
From Scientific American ● Jan. 23, 2013
Since all our infinities are countably infinite, is there something like an ‘uncountably’ infinite set?
From Scientific American ● Jan. 23, 2013
The hotel looks like any other but there’s a catch: much to your delight, it contains a countably infinite number of rooms.
From Scientific American ● Jan. 23, 2013
