Non-collinear.
A set of points on a straight line are called 'collinear points'.
Collinear Points.
A straight line is a line with the property that, if you pick any two points on the line and connect these points with a straight line, then every point on this new line lies on the original line.
A straight line is the shortest distance between two points, a line is the delineation of a connection between two or more points.
The shortest distance between two points is... a straight line.
A minimum of two points is required to draw a straight line. Any two distinct points can be connected by a straight line, and this line will extend infinitely in both directions. Additional points can lie on the same line, but only two are necessary to define the line's direction and position.
In coordinated geometry the points on a straight line will determine its equation.
The definition is any chart where one or more points lie off the straight line joining the other points.
A line segment is a straight line with end points
Collinear points are points on the same straight line.
Points on the same line are called collinear points.
If you mean a straight line that does not extend BEYOND it's two end points, then that would be a 'line segment.'