Verb
To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc.; to render parallel, as rays of light.
Source: Webster's dictionaryThey paralleled the ditch to the highway Source: Internet
However, when large quantities of light are needed many light sources are usually deployed, which are difficult to focus or collimate towards the same target. Source: Internet
The gluons interact with each other, not just with the quarks, and at long distances the lines of force collimate into strings. Source: Internet