Look up collinearity or collinear in Wiktionary, the free dictionary.
In geometry, collinearity of a set of points is the property of their lying on a single line.[1] A set of points with this property is said to be collinear (sometimes spelled as colinear[2]). In greater generality, the term has been used for aligned objects, that is, things being "in a line" or "in a row".
- ^ The concept applies in any geometry Dembowski (1968, pg. 26), but is often only defined within the discussion of a specific geometry Coxeter (1969, pg. 178), Brannan, Esplen & Gray (1998, pg.106)
- ^ Colinear (Merriam-Webster dictionary)