Definition of linear
1a(1)
: of, relating to, resembling, or having a graph that is a line and especially a straight line : straight
(2)
: involving a single dimension
b(1)
: of the first degree with respect to one or more variables
(2)
: of, relating to, based on, or being linear equations, linear differential equations, linear functions, linear transformations, or linear algebra
c(1)
: characterized by an emphasis on line
linear art
(2)
: composed of simply drawn lines with little attempt at pictorial representation
linear script
d
: consisting of a straight chain of atoms
a linear molecule
2
: elongated with nearly parallel sides
linear leaf
— see leaf illustration
3
: having or being a response or output that is directly proportional to the input
4
: of, relating to, or based or depending on sequential development
linear thinking a linear narrative
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MerriamWebster unabridged
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Time Traveler for linear
The first known use of linear was circa 1656
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