line of sight

noun phrase

1
: a line from an observer's eye to a distant point
2
: the line between two points
specifically : the straight path between a transmitting antenna (as for radio or television signals) and a receiving antenna when unobstructed by the horizon

Examples of line of sight in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Scientists now understand that WR 104's orbital plane is tilted at least 30 to 40 degrees out of Earth's direct line of sight, significantly reducing the likelihood of a GRB impact. Josh Hammer, Newsweek, 19 Mar. 2025 Its laser beams require a direct line of sight between terminals, and weather conditions can occasionally impact performance. Esat Dedezade, Forbes, 18 Mar. 2025 The technique is known as gravitational lensing, which is when a massive amount of matter -- like a cluster of galaxies -- creates a gravitational field that distorts and magnifies the light from distant galaxies that are behind it but in the same line of sight, according to NASA. Julia Jacobo, ABC News, 6 Jan. 2025 The crater floor will be outside the line of sight Grace would ordinarily need to talk with the nearby Athena. Josh Dinner, Space.com, 27 Feb. 2025 See All Example Sentences for line of sight

Word History

First Known Use

1559, in the meaning defined at sense 1

Time Traveler
The first known use of line of sight was in 1559

Browse Nearby Words

Cite this Entry

“Line of sight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/line%20of%20sight. Accessed 2 Apr. 2025.

Medical Definition

line of sight

noun
1
: a line from an observer's eye to a distant point
2
Last Updated: - Updated example sentences
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