Collinear points
From Latin: co- "together" , -linearis "belonging to a line,"
Definition: A set of points that lie in a straight line
Try this Move any of the points around with the mouse. The others will move by themselves so they all remain collinear.

Obviously two points are always collinear, since a straight line can always be drawn through two points. Sometimes it is spelled 'colinear' (with one L).

Word Usage

We say that "point Q is collinear with points P, R and S". Or put another way, "the points P, Q, R and S are collinear".

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