number line

noun Mathematics.

a straight line on which there is indicated a one-to-one correspondence between points on the line and the set of real numbers.
Also called real line.

Origin of number line

First recorded in 1955–60

Words nearby number line

numbat, number, number crunching, number eight wire, number is up, one's, number line, number off, number one, number one wood, number opera, number seven iron

British Dictionary definitions for number line

number line

noun

an infinite line on which points represent the real numbers