collinear

1 8.6

Points or lines that lie on the same straight line

adjective
/ˌkoʊlˈlɪniər/

Specialized

: colineal

Very interestingly, there are energy barriers separating the collinear and noncollinear structures.
collinear and noncollinear
collinear structures

And if those are not collinear, I start to feel bad.

Examples

But as you can see in the picture above, they're not nearly that collinear.

Blog text (28)
And if those are not collinear, I start to feel bad.

The Prof G Pod – Scott Galloway
So for this position and orientation, when these two axes are collinear, you are losing locally a degree of freedom.
In the isomers a and c, the spins are noncollinear. The corresponding collinear structures are b and d.

Academic text (1999)
The three points A, B, and C are collinear because they lie on the same straight line.
In geometry, if two lines are collinear, they will never intersect each other.
When measuring the land, make sure the stakes are collinear to ensure accurate boundaries.

Antonyms

noncollinear

Specialized

7.9

Points that do not all lie on the same straight line

How Straight

straight

∞ 1.0

collinear

Specialized

1 8.6

linear

24 4.4

curved

6 1.0

irregular

14 3.4

Surface Forms

collinear positive

Morphology

collinear = linear (transparent) = col + line + ar

Formed by adding the prefix 'co-' (assimilated to 'col-') meaning 'together' to 'linear', producing 'on the same line', which is directly derivable from the base.

Etymology

The word collinear comes from the part co- meaning 'together' and linear from a word for 'line'. So, collinear describes points that lie 'together on the same straight line'.