DictionaryparallelConstant distance apart
adjective / verb / noun

parallel

PAR-uh-lel/ˈpærəlel/

Extending alongside at a constant distance without meeting.

The two railway rails remain parallel, keeping the same distance apart.

Two straight railway rails in plan view run beside each other at constant spacing across horizontal composition, three sleepers; no perspective convergence, white ground.
Etymology

The Greek components mean “beside one another.” In geometry, this became the precise relationship of lines that remain side by side without meeting, however far they extend.

In context

Centum Academy39:57
what do you think parallel vectors are parallel vectors they are in the same direction
Vectors in Motion in Two Dimensions Part 1

More examples

  • Opposite sides of a rectangle are parallel to each other.
  • The bike path parallels the straight road for a mile.
  • Use a ruler to draw a parallel to this line.

Forms

parallel · parallels · paralleled · paralleling

parallelism noun — The condition of lines or surfaces being parallel.

Similar words

equidistant
Means equally distant from something, not necessarily running alongside it.
adjacent
Means next to something, without requiring constant spacing.