grayline

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A form of greyline — A transition line, coinciding with a twilight zone (terminator), where a change in the propagation of radio waves is observed.

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Meanings

noungrayline (uncountable)
  1. alternativeuncountableAlternative spelling of greyline.

Rhymes & wordplay

Anagrams

layeringyearlingrelaying
Cite this entry
APA

grayline. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/grayline

MLA

“grayline.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/grayline. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “grayline,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/grayline.

Source: grayline on Wiktionary, CC BY-SA 4.0.