line of sight ExamplesWord Origin See more synonyms for line of sight on Thesaurus.com noun
- Also called line of sighting. an imaginary straight line running through the aligned sights of a firearm, surveying equipment, etc.
- Astronomy. an imaginary line from an observer to a celestial body, coincident with the path traveled by light rays receivedfrom the body.
- Radio. a straight line connecting two points sufficiently high and near one another so that the line is entirely above the surface of the earth.
- Ophthalmology. line of vision.
- sightline.
Origin of line of sight First recorded in 1550–60 Related Words for line of sight beeline, view, sightline Examples from the Web for line of sight Historical Examples of line of sight
He started the fuel pumps winding up, and swung the ship to point normal to the line-of-sight to the jammer.
Joseph P. Martino
I’m inclined like everybody else to consider perception on a line-of-sight basis instead of on a sort of all-around grasp.
George Oliver Smith
There were other instruments in other line-of-sight positions, very far away.
William Fitzgerald Jenkins
British Dictionary definitions for line of sight line of sight noun
- the straight line along which an observer looks or a beam of radiation travels
- ophthalmol another term for line of vision