{s} straight; one dimensional; pertaining to length; involving or resembling lines; narrow and elongated; involving linear functions or equations (Mathematics)
of or in or along or relating to a line; involving a single dimension; "a linear foot" designating or involving an equation whose terms are of the first degree measured lengthwise; "cost of lumber per running foot" of a leaf shape; long and narrow
Type of relationship between variables in which a one-unit change in one variable is associated with a constant change in the other variable in the same or opposite direction; when plotted forms a straight line